Batch & Multiple File Processing Tools Online

AI & Generators

AI Face Align & Crop

Detect, align, and crop faces into individual images (zip when multiple)

Data & Tables

ANOVA Variance Analysis

Perform one-way Analysis of Variance (ANOVA) to compare means across multiple groups

Math, Date & Finance

ANOVA Calculator

Run one-way ANOVA across multiple groups and inspect sums of squares, F statistic, and p-value

Developer & Web

Array Element Counter

Count occurrences of specific elements in arrays with support for multiple counting modes and statistical analysis

Developer & Web

Array Element Deleter

Delete specific elements from arrays with support for multiple deletion methods

Developer & Web

Array Element Replacer

Replace specific elements in arrays with support for multiple replacement methods

Images, Audio & Video

Batch Audio Converter

Convert multiple audio files between different formats like MP3, WAV, FLAC, AAC, OGG, Opus with quality settings and batch processing

Images, Audio & Video

Batch Audio Metadata Editor

Edit metadata tags (artist, album, title, genre, year, track, comment) for multiple audio files at once

Images, Audio & Video

Batch Audio Normalize

Normalize multiple audio files to a target peak level with consistent volume across the batch

Images, Audio & Video

Audio Loop Concat

Concatenate an audio file with itself multiple times to create a loop

Images, Audio & Video

Audio Merge

Merge multiple audio files into one

Images, Audio & Video

Audio Mix

Mix multiple audio tracks together with adjustable volumes

Images, Audio & Video

Audio Preview Snippets

Generate short preview snippets from multiple timestamps

Images, Audio & Video

Audio Splicer

Splice multiple audio files into one single audio file with customizable output format

Images, Audio & Video

Audio Stem Mixer

Mix multiple stems and export vocal up/down versions

Images, Audio & Video

Audio Stitcher

Stitch multiple short audio clips together, optionally adding gaps

Conversion & Encoding

Base32 Converter

Encode and decode text to/from Base32 format with multiple variants

Math, Date & Finance

Basic Calculator

Perform basic arithmetic calculations with support for multiple operations

Images, Audio & Video

Batch Image Compress

Compress multiple images with quality control, output format selection, and size optimization

Images, Audio & Video

Batch Image Convert

Convert multiple images to different formats with quality settings and batch processing

Security & Validation

Batch Email Validator

Validate multiple email addresses at once with format checking and basic quality analysis

Images, Audio & Video

Batch Image Trim

Trim multiple images simultaneously using various trimming methods with batch processing and ZIP output

Security & Validation

Batch Phone Validator

Validate and format multiple phone numbers at once with international format support

Images, Audio & Video

Batch Image Resize

Resize multiple images to specific dimensions with various resize options and batch processing

Developer & Web

Batch URL Validator

Validate multiple URLs at once with format checking and security analysis

Images, Audio & Video

Batch Image Watermark

Add watermarks to multiple images with text or image watermarks, position control, and batch processing

Images, Audio & Video

Batch WAV Audio Converter

Convert multiple WAV files to OGG, AAC, M4A, and OPUS formats with quality settings, bitrate control, and batch processing

Images, Audio & Video

Bulk Images Resize for Instagram

Resize multiple images for Instagram with preset dimensions for different content types (posts, stories, reels, profile photos)

Developer & Web

Changelog Extractor

Parse and extract structured data from changelogs and release notes in multiple formats

Developer & Web

Code Complexity Analyzer

Measure cyclomatic and cognitive complexity across multiple programming languages

Games & Fun

Coin Flipper

Flip a virtual coin with multiple coins option

Design & Color

Color Gradient Generator

Generate smooth color gradients between multiple colors with customizable steps and formats

Design & Color

Grayscale Converter

Convert colors to grayscale with multiple conversion methods and intensity control

Design & Color

Color Mixer

Mix multiple colors together with different blending modes and ratios

Data & Tables

Concat Arrays

Concatenate multiple arrays using lodash _.concat

Data & Tables

Correlation Analyzer

Advanced correlation analysis tool that calculates correlation coefficients between variables to measure the strength and direction of their linear relationships. Perfect for statistical analysis, financial modeling, scientific research, and data exploration. Features: - Multiple correlation methods (Pearson, Spearman, Kendall) - Correlation matrix generation - Statistical significance testing (p-values) - Confidence intervals calculation - Heatmap visualization - Scatter plot matrix generation - Missing value handling strategies - Outlier detection and handling - Group analysis capabilities - Detailed statistical reports Common Use Cases: - Financial market analysis and risk assessment - Scientific research and hypothesis testing - Customer behavior and marketing analysis - Healthcare and medical data analysis - Quality control and process optimization - Educational performance evaluation

Developer & Web

CSS Selector Specificity Calculator

Calculate CSS selector specificity scores, compare multiple selectors, and get suggestions for avoiding cascade conflicts

Data & Tables

CSV Filter

Filter CSV data by column values with multiple conditions and operators. Supports 12 filter operators including equals, contains, greater_than, less_than, and empty value checks. Additional Filters examples: [{"column": "age", "operator": "greater_than", "value": "25"}] [{"column": "status", "operator": "equals", "value": "active"}, {"column": "score", "operator": "greater_equal", "value": "80"}] [{"column": "name", "operator": "contains", "value": "john"}, {"column": "email", "operator": "is_not_empty"}]

Data & Tables

CSV File Merger

Merge multiple CSV files into a single file with options for header handling and deduplication

Data & Tables

CSV Sorter

Sort CSV data by one or multiple columns with ascending/descending order options

Data & Tables

CSV Splitter

Split CSV content by specified number of rows per file. Perfect for processing large datasets, dividing data for analysis, batch processing, and managing file size limits. Features: - Split CSV by row count - Support multiple output formats - Preserve header row in each split - Flexible output format options - Support for large datasets - Fast and efficient processing Common Use Cases: - Split large CSV files for processing - Divide data for parallel processing - Create manageable data chunks - Export data in different formats - Prepare data for batch operations - Manage file size limitations

Data & Tables

Data Append Merger

Vertically append and merge multiple data tables with intelligent column matching

Data & Tables

BOM Character Remover

Remove BOM (Byte Order Mark) characters from text and file content. Perfect for cleaning up text files that have encoding issues, fixing CSV imports, and preparing data for processing. Features: - Detect and remove UTF-8 BOM (EF BB BF) - Detect and remove UTF-16 BOM (FE FF or FF FE) - Detect and remove UTF-32 BOM (00 00 FE FF or FF FE 00 00) - Support multiple input formats - Visual BOM character display - Detailed detection report - Support for batch text processing Common Use Cases: - Fix CSV file import errors - Clean up text file encoding issues - Prepare data for JSON parsing - Fix XML parsing problems - Resolve API data encoding conflicts - Standardize text data format

Data & Tables

Data Boundary Processor

Advanced boundary value processing tool that identifies and handles minimum/maximum values in numerical data. Perfect for data validation, range checking, statistical analysis, and data preprocessing. Features: - Multiple boundary detection methods (absolute, percentile, standard deviation) - Flexible handling strategies (clip, remove, replace, transform) - Custom range validation - Asymmetric boundary handling - Batch processing capabilities - Comprehensive boundary statistics - Data quality assessment - Visual boundary reports Common Use Cases: - Data validation and quality control - Sensor data range checking - Financial data limit enforcement - Statistical data preprocessing - Machine learning feature engineering - Database constraint validation

Data & Tables

Data Crosstab Generator

Advanced crosstab (pivot table) generator that creates powerful cross-tabulation analysis from your data. Perfect for business intelligence, statistical analysis, data exploration, and reporting. Features: - Multiple aggregation functions (sum, count, average, min, max, median) - Flexible row and column grouping - Percentage and ratio calculations - Row/column totals and grand totals - Multi-dimensional analysis - Conditional formatting support - Statistical significance testing - Custom sorting and filtering - Export-ready formatting Common Use Cases: - Sales analysis by region and product - Customer demographics analysis - Financial statement analysis - Survey response analysis - Inventory turnover analysis - Performance metrics tracking

Data & Tables

Data Deduplicator

Remove duplicate rows from CSV files based on multiple column combinations. Perfect for cleaning customer lists, survey responses, and database exports. Features: - Multi-column combination deduplication - Fuzzy matching for similar records - Custom deduplication strategies (keep first, last, or most complete record) - Case-insensitive matching option - Whitespace trimming - Detailed duplicate statistics Common Use Cases: - Remove duplicate customer records - Clean email marketing lists - Eliminate redundant survey responses - Prepare data for analysis

Data & Tables

Foreign Key Validator

Validate foreign key relationships between multiple datasets. Perfect for checking data integrity, finding orphaned records, and ensuring referential consistency across related tables. Features: - Validate foreign key relationships - Find orphaned records - Check referential integrity - Support multiple key formats - Cross-table validation - Missing key detection - Duplicate key analysis - Relationship mapping Common Use Cases: - Database integrity checks - Data migration validation - ETL process verification - Referential consistency checks - Data quality assurance - Relationship analysis

Data & Tables

Data Interpolator

Advanced data interpolation tool that fills missing values and generates data points using various mathematical methods. Perfect for time series analysis, data completion, signal processing, and scientific computing. Features: - Multiple interpolation methods (linear, polynomial, spline, cubic) - Time series interpolation with date/time support - Forward fill and backward fill options - Nearest neighbor interpolation - Custom interpolation parameters - Missing value detection and reporting - Data point generation and densification - Support for multiple columns simultaneously - Interactive interpolation preview Common Use Cases: - Sensor data gap filling - Financial data completion - Scientific experiment data processing - Time series forecasting preparation - Image and signal processing - Statistical data imputation

Data & Tables

Min-Max Normalizer

Normalize numerical data using Min-Max scaling to transform values to a 0-1 range. Perfect for machine learning preprocessing, data analysis, and feature scaling. Features: - Min-Max scaling (0-1 normalization) - Custom range support (e.g., -1 to 1) - Multiple column selection - Automatic data type detection - Handles missing values - Preserves non-numeric columns - Statistical summary included Common Use Cases: - Machine learning feature preparation - Neural network input normalization - Data visualization preprocessing - Comparative analysis across different scales

Data & Tables

Data Outlier Processor

Advanced outlier detection and processing tool that identifies, removes, or replaces anomalous values in numerical data using multiple statistical methods. Perfect for data cleaning, statistical analysis, and machine learning data preparation. Features: - Multiple detection methods (IQR, Z-score, Modified Z-score, Isolation Forest) - Flexible handling strategies (Remove, Replace with mean/median/mode, Cap) - Automatic threshold optimization - Multi-dimensional outlier detection - Visual outlier statistics and reporting - Batch processing capabilities - Custom sensitivity levels - Comprehensive impact analysis Common Use Cases: - Data cleaning and preprocessing - Statistical analysis preparation - Machine learning dataset cleaning - Quality control in manufacturing - Financial anomaly detection - Sensor data validation

Data & Tables

Data Range Limiter

Limit numerical values to specified ranges by clipping, filtering, or marking out-of-bounds values. Perfect for data quality control, sensor data cleaning, business rule enforcement, and data preprocessing. Features: - Range clipping (clip values to min/max boundaries) - Range filtering (remove out-of-bounds rows) - Range marking (flag modified values) - Per-column range configuration - Automatic numeric column detection - Multiple handling strategies - Detailed modification reports - Statistical analysis of changes - Business rule enforcement Common Use Cases: - Sensor data validation and cleaning - Machine learning input preparation - Data quality control and validation - Business constraint enforcement - Outlier management and control - Data preprocessing pipelines

Data & Tables

Z-Score Standardizer

Standardize numerical data using Z-score (standard score) normalization to transform values with mean=0 and standard deviation=1. Perfect for statistical analysis, machine learning feature preprocessing, outlier detection, and data comparison across different scales. Features: - Z-score standardization (mean=0, std=1) - Robust Z-score option (using median and MAD) - Custom scaling to target range - Multiple column selection - Automatic data type detection - Handles missing values intelligently - Preserves non-numeric columns - Comprehensive statistical summary - Outlier detection and reporting Common Use Cases: - Machine learning feature preparation - Statistical hypothesis testing - Outlier detection and removal - Data comparison across different units - Principal Component Analysis (PCA) preprocessing

Text & Writing

Date Extractor (日期提取器)

Extract dates from text in multiple formats including Chinese, ISO, and US formats with detailed analysis and summary

Data & Tables

Duplicate Column Remover

Remove duplicate columns from CSV data with flexible detection strategies. Perfect for cleaning datasets, removing redundant information, and optimizing data structure. Features: - Detect columns with identical headers - Find columns with identical data content - Support for case-sensitive/insensitive matching - Multiple removal strategies available - Preserve data integrity - Support for large datasets - Fast and efficient processing Common Use Cases: - Clean up merged datasets - Remove redundant data columns - Optimize data for analysis - Prepare data for machine learning - Reduce file size and complexity - Standardize data format

Math, Date & Finance

GCD & LCM Calculator

Calculate the greatest common divisor and least common multiple for two or more integers

Security & Validation

Global Phone Validator

Validate phone numbers from multiple countries including China, US, and more with detailed formatting and carrier info

Security & Validation

Global Postal Code Validator

Validate postal codes from multiple countries including US ZIP, UK Postcode, Canada, and more

Charts & Visualization

Grouped Bar Chart Generator

Generate grouped bar charts for comparing multiple categories side by side, perfect for multi-category comparisons and comparative analysis

Data & Tables

Header Adder

Add headers to CSV data that lacks column names. Perfect for data import from databases, API responses, or numeric datasets that need proper column identification. Features: - Add custom headers to header-less data - Auto-generate intelligent headers - Support for various header naming conventions - Preview headers before applying - Multiple header format options - Support for existing data detection - Batch processing capabilities Common Use Cases: - Fix database exports without headers - Process API response data - Prepare numeric datasets for analysis - Standardize data column naming - Create proper CSV structures - Data format normalization

Data & Tables

Header Remover

Remove headers from CSV data to create clean header-less files. Perfect for database imports, data processing pipelines, API integrations, and systems that require header-less CSV format. Features: - Remove first row (header) from CSV data - Remove multiple header rows - Skip empty lines before removing headers - Preserve data integrity - Support various CSV separators - Preview before removal - Data validation options - Batch processing capabilities Common Use Cases: - Prepare data for database imports - Clean up API response data - Remove metadata from exported files - Create header-less data for machine learning - Prepare data for systems that don't use headers - Extract pure data values from structured files

Design & Color

Image Blending Effect

Blend multiple images together using various blend modes for creative compositions and effects

Design & Color

Image Blur

Add blur effects to images with adjustable blur strength and multiple blur types

Design & Color

Image Composite

Composite multiple images together with precise control over position, opacity, and blend modes

Images, Audio & Video

Image Composite Matrix

Apply composite transformation by combining multiple basic transformations (scaling, rotation, shearing). See how transformation matrices multiply and create complex effects.

Design & Color

Median Pass Filter

Apply median pass filter to remove noise while preserving edges with multiple algorithms

Design & Color

Image Noise Reduction

Reduce image noise using multiple algorithms including median, gaussian, and bilateral filtering

Images, Audio & Video

Image Padder

Advanced image padding tool with multiple fill strategies - transparent background, mirror, repeat, or solid colors

Images, Audio & Video

Image Resizer

Professional image resizing tool with multiple resize methods, aspect ratio preservation, and format conversion, supporting GIF/Animated WebP/APNG and JPEG/PNG/WEBP.

Design & Color

Image Sharpening

Enhance image clarity and sharpness with adjustable sharpening intensity and multiple sharpening methods

Design & Color

Image Stitcher

Combine multiple images into a single stitched image with customizable layout, spacing, and alignment

Design & Color

Image Watermark Corner

Add corner watermarks to images with customizable positioning, size, opacity, and multiple corner options

Developer & Web

Integer to IPv4

Convert integers to IPv4 addresses. Supports batch conversion of multiple integers.

Data & Tables

Intersection Arrays

Find common values across multiple arrays using lodash _.intersection

Developer & Web

IPv4 to Integer

Convert IPv4 addresses to integers. Supports batch conversion of multiple addresses.

Data & Tables

JSON Key Extractor

Extract all keys from JSON objects with multiple output formats. Perfect for analyzing JSON structure, documentation generation, and understanding complex nested objects.

Data & Tables

JSON File Merger

Merge multiple JSON files with various merging strategies (deep merge, overwrite, combine arrays, etc.)

Documents & PDF

LibreOffice PPT to PDF Handouts

Convert PPT/PPTX to PDF and optionally render handout layout with multiple slides per page

Security & Validation

License Plate Validator

Validate license plate formats from multiple countries including China, USA, Japan, and more

Data & Tables

Log Redactor

Batch redact sensitive data from logs using configurable rules and multiple strategies

Data & Tables

Markdown Merger

Merge multiple markdown files with smart header level adjustment and table of contents generation

Documents & PDF

Markdown Report Bundler

Bundle multiple Markdown files into a single PDF report

Data & Tables

Missing Value Handler

Comprehensive missing value detection, analysis, and intelligent handling with multiple strategies

Developer & Web

Multi-Pattern Matcher

Match multiple regex patterns against text in one operation

Data & Tables

Multi-Table Joiner

Merge and join multiple tables with various join types (inner, left, right, full)

Text & Writing

Multiline Merger

Merge multiple lines into a single line with customizable separators and formatting options

Math, Date & Finance

Multiple Linear Regression Calculator

Fit a multiple linear regression model from rows of predictor variables and a numeric target

Data & Tables

Normality Tester

Comprehensive normality testing using multiple statistical methods

Conversion & Encoding

Number to Words Converter

Convert numbers to words in multiple languages

Documents & PDF

PDF Merge Documents

Merge multiple PDF files with optional table of contents and separator pages

Documents & PDF

PDF N-up Layout

Place multiple PDF pages as thumbnails on one page (2-up / 4-up / 8-up)

Text & Writing

Phone Number Extractor

Extract phone numbers from mixed text with support for multiple countries and formats

AI & Generators

Prompt Translator

Translate text between multiple languages using AI

Data & Tables

Regression Analyzer

Advanced regression analysis tool for performing linear regression analysis, calculating regression statistics, and making predictions. Perfect for statistical modeling, trend analysis, forecasting, and understanding relationships between variables. Features: - Simple linear regression (y = mx + b) - Multiple linear regression support - Regression coefficients calculation - Statistical significance testing - R-squared and adjusted R-squared - Residual analysis and diagnostics - Prediction intervals and confidence intervals - Outlier detection in regression - Model validation metrics - Visual regression diagnostics - Data transformation support Common Use Cases: - Sales forecasting and trend analysis - Financial modeling and risk assessment - Scientific research and hypothesis testing - Quality control and process optimization - Marketing analytics and ROI analysis - Medical and biological research

Charts & Visualization

Scatter Plot Generator

Generate customizable scatter plots with regression lines and multiple data series

Math, Date & Finance

Slope Intercept Calculator

Find slope, y-intercept, and line equation from two points or multiple paired observations

AI & Generators

AI Multilingual Spell Checker

Advanced multilingual spell checker with grammar correction, contextual suggestions, and writing improvement support for multiple languages

Charts & Visualization

Stacked Area Chart Generator

Generate stacked area charts showing cumulative trends of multiple data series, perfect for visualizing total trends and component contributions

Charts & Visualization

Stacked Bar Chart Generator

Generate interactive stacked bar charts to visualize categorical data composition, perfect for comparing multiple data series across categories

Text & Writing

Line Skip Extractor

Extract lines from text at regular intervals with customizable skip and extract patterns. Perfect for sampling every Nth line or extracting multiple lines with gaps.

Text & Writing

Text Data Compressor

Advanced text compression tool using multiple algorithms including RLE, LZ77, Huffman encoding, and more

AI & Generators

AI Text Expander

Advanced AI text expander that transforms brief content into comprehensive, detailed, and engaging text with multiple expansion strategies

Utilities & Productivity

Text File Replacer

Find and replace text in files with support for regex, multiple patterns, and backup creation

Text & Writing

Text Joiner

Join multiple text inputs with custom separators

Text & Writing

Text Line Merger

Merge multiple lines of text into a single line with customizable separators

Text & Writing

Text Repeater

Repeat text multiple times with customizable separators

Text & Writing

Text Similarity Detector

Calculate similarity percentage between two texts using multiple algorithms including Cosine Similarity, Jaccard Similarity, and Levenshtein Distance

Math, Date & Finance

Time Zone Workflow Scheduler

Compare multiple participants across time zones, find overlapping working windows, and export the best meeting slots to ICS

Math, Date & Finance

Tip Calculator

Calculate tips and split bills between multiple people with customizable tip percentages

Data & Tables

TXT File Merger

Merge multiple text files with various strategies (concatenate, interleave, etc.)

Developer & Web

Variable Name Validator - Multi-Language Naming Convention Checker

Validate variable names against multiple programming language naming conventions and standards

Images, Audio & Video

Video Audio Extract Enhanced

Extract audio from video files with advanced options - multiple formats, quality settings, and audio enhancement

Images, Audio & Video

Batch Video Compressor

Compress multiple video files by reducing file size while maintaining quality using CRF, resolution scaling, and codec optimization

Images, Audio & Video

Batch Video Converter

Convert multiple video files between different formats like MP4, WebM, MKV, AVI, MOV with quality settings and batch processing

Images, Audio & Video

Batch Video Resize

Resize multiple video files using resolution presets or custom dimensions, with optional aspect ratio preservation

Images, Audio & Video

Batch Video Watermark

Add text watermark to multiple video files with customizable position, font size, color, opacity, and timing

Images, Audio & Video

Video Cutter

Cut and trim video clips with precision, supporting multiple formats and quality settings

Images, Audio & Video

Video Splicer

Splice and join multiple video files into one

Conversion & Encoding

XLSX Multi-Tab Report Pack

Generate one workbook containing multiple report tabs: overview, details, anomalies, and dictionary

Conversion & Encoding

XLSX Workbook Merger

Merge multiple similarly structured workbooks as multiple sheets or append all rows into one sheet

Data & Tables

XML File Merger

Merge multiple XML files into a single file with options for handling root elements and namespaces

Data & Tables

YAML File Merger

Merge multiple YAML files with various strategies (deep merge, overwrite, combine arrays, etc.)

Data Processing

125 Tools

Access 125 online data processing tools for formatting, converting, and cleaning data. Secure server-side processing with automatic file deletion after 6 hours.

Files

94 Tools

Access 94 online file tools to convert, format, extract, and process various file formats. Secure server-side processing with automatic file deletion after 6 hours.

Text

238 Tools

Access 238 online text tools to format, convert, and manipulate strings, words, and characters. Secure server-side processing with automatic file deletion after 6 hours.

Image

282 Tools

Access 282 online image tools to convert, compress, and edit formats like PNG, JPG, WebP, SVG, and GIF. Secure server-side processing with automatic file deletion after 6 hours.

Audio

254 Tools

Access 254 online audio tools to convert, edit, and process MP3, WAV, OGG, FLAC, AAC, and M4A files. Secure server-side processing with automatic file deletion.

CSV

62 Tools

Access 62 professional CSV tools to convert, format, and manipulate comma-separated data. Secure server-side processing with automatic file deletion after 6 hours.