Online CSV Tools for Data Processing and Conversion

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

Manage and transform comma-separated data with 62 specialized CSV tools. Perform complex operations like format conversion, data cleaning, and validation directly from your browser. All processing is handled on our secure servers, ensuring high performance without requiring local software installation.

62 Tools

Data & Tables
AI Data Normalizer
AI-powered data format normalization tool that intelligently cleans and standardizes messy data using advanced AI analysis
Images, Audio & Video
Audio Silence Map
Output silence intervals as JSON and CSV
Design & Color
Barcode Batch Generator
Batch generate Code 128, EAN-13, UPC-A, ITF-14, QR Code, and Data Matrix outputs from CSV or multiline text
Data & Tables
Column Calculator
Perform calculations on columns and add new rows
Data & Tables
Column Remover
Remove specified columns from table data
Data & Tables
Column Renamer
Rename column headers in CSV and table data with preview and validation
Data & Tables
Column Reorder
Reorder table columns without changing the data rows
Data & Tables
CSV Column Reorderer
Reorder, remove, and rearrange CSV columns with customizable column positions
Data & Tables
CSV Column Selector
Select specific columns from CSV data by column names or indices. Perfect for extracting relevant data from large CSV files with many columns.
Data & Tables
CSV Data Grouper
Group CSV data by specified columns with aggregation options. Perfect for summarizing and analyzing large datasets by categories, dates, or other criteria.
Data & Tables
CSV / Excel Diff Tool
Compare two CSV or XLSX datasets and export a PDF report with row, column, and cell-level differences
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"}]
Security & Validation
CSV/JSON Data Watermarker
Inject visible or signature-style watermark fields into CSV or JSON exports so shared datasets can be traced later
Data & Tables
CSV File Merger
Merge multiple CSV files into a single file with options for header handling and deduplication
Data & Tables
CSV Row Column Transposer
Transpose CSV data by converting rows to columns, with support for various delimiters and output formats
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
CSV to Database Migration Planner
Infer a relational schema from CSV data and generate create-table plus ALTER migration plans for PostgreSQL, MySQL, SQLite, or SQL Server
Conversion & Encoding
CSV to Excel Converter
Convert CSV data to Excel format with customizable parsing and formatting options
Conversion & Encoding
CSV to HTML Table
Convert CSV data to HTML table format
Conversion & Encoding
CSV to JSON Converter
Convert CSV data to JSON format with customizable parsing options
Conversion & Encoding
CSV to Markdown
Convert CSV data to Markdown table format
Conversion & Encoding
CSV Protobuf Converter
Convert between CSV and Protocol Buffers (Protobuf) formats
Conversion & Encoding
CSV to XML Converter
Convert CSV data to XML format with customizable formatting options
Data & Tables
CSV Transformer
Transform and process CSV data with column operations, calculations, and data type conversions. Supports renaming columns, adding calculated columns, removing columns, converting data types, calculating values, and filtering rows. Operation examples: • Rename column: [{"type": "rename", "column": "old_name", "new_name": "new_name"}] • Add calculated column: [{"type": "add_column", "new_column": "total", "formula": "price * quantity"}] • Remove column: [{"type": "remove_column", "remove_column": "column_to_remove"}] • Convert data type: [{"type": "convert_type", "convert_column": "age", "target_type": "number"}] • Calculate values: [{"type": "calculate", "target_column": "total", "expression": "price * tax + shipping"}] • Filter rows: [{"type": "filter_values", "filter_column": "status", "operator": "equals", "value": "active"}]
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 Column Extractor
Extract specific columns from tabular data with support for various formats and flexible column selection
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
Data Normalizer
Pure code-based data format normalization tool that cleans and standardizes messy data using programmatic logic
Data & Tables
Dataset Imbalance Detector & Resampler
Detect class imbalance in CSV or JSON datasets, compare resampling strategies, and preview a balanced output dataset
Data & Tables
Dataset Quality Profiler
Profile CSV or JSON datasets for missing values, duplicate rows, format drift, type inference, and numeric outliers
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
Conversion & Encoding
Excel to CSV Converter
Convert Excel file to CSV format, extracting data from the first worksheet
Security & Validation
Field-Level Data Decryptor
Decrypt specific fields in CSV data using various decryption methods to restore encrypted information
Security & Validation
Field-Level Data Encryptor
Encrypt specific fields in CSV data using various encryption methods to protect sensitive information
Documents & PDF
Fitness Workout PDF Generator
Generate a printable workout-plan PDF from JSON or CSV data with exercise tables, progress boxes, and optional QR video links
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
Conversion & Encoding
HTML Table to CSV
Extract and convert HTML table data to CSV format
Developer & Web
JSON-LD Generator from CSV
Turn CSV or Excel rows into Schema.org JSON-LD for articles, products, or events, with validation-ready output for SEO workflows
Conversion & Encoding
JSON to CSV Converter
Convert JSON data to CSV format with customizable formatting options
Data & Tables
JSONata Query & Transform Studio
Preview JSONata-style queries and transformations, compare results across sample payloads, and export the transformed output as JSON, CSV, YAML, or Markdown
Text & Writing
Markdown Table Generator
Generate formatted Markdown tables from CSV, JSON, or array data with alignment, header styles, width control, and merge hints
Conversion & Encoding
Markdown to CSV
Convert Markdown table data to CSV format
AI & Generators
Mock Data Prefix / Abbreviation Conflict Detector
Detect visually confusing field names and prefix collisions in CSV, JSON, or schema inputs, then suggest clearer renames
Documents & PDF
PDF Certificates Batch
Batch-generate certificate PDFs from CSV rows (name/date/course fields)
Data & Tables
PDF Table Extractor to CSV/JSON
Extract tables from PDFs with OpenDataLoader and export them as structured JSON, flat CSV, or HTML tables
Data & Tables
Pivot Table Generator
Generate interactive pivot tables from CSV/JSON data with customizable row, column, and value field configurations
Data & Tables
Row Calculator
Perform calculations on each row and add new columns
Data & Tables
Structured Log Analyzer
Detect common log formats, extract core fields, infer field types, and export parsed logs as JSON, CSV, or SQL inserts
Data & Tables
SVG Chart to Data Extractor
Reverse engineer SVG charts into data points for line, bar, scatter, and pie-style SVG structures
AI & Generators
Test Data Faker Builder
Generate structured test data from field configuration with support for faker fields, regex rules, credit cards, IDs, and batch export
Text & Writing
Text to CSV Converter
Convert various text formats to CSV with customizable parsing options
Conversion & Encoding
Text to Excel Converter
Convert various text formats to Excel with customizable parsing and formatting options
Data & Tables
Time Series Anomaly Detector
Upload CSV or JSON time series data, detect anomalies with Z-Score and IQR methods, and return a chart-backed report
Data & Tables
Time Series Forecast & Seasonality Analyzer
Forecast future periods from CSV or JSON time-series data and inspect trend, seasonal, and residual decomposition in one report
Conversion & Encoding
XLSX CSV Batch Converter
Batch convert CSV/TSV to XLSX or convert XLSX back to CSV/TSV with delimiter and encoding handling
Conversion & Encoding
XLSX CSV Detect Normalize
Auto-detect CSV delimiter/encoding (UTF-8/GBK), normalize the table, and import to XLSX/CSV
Conversion & Encoding
XLSX Multi Sheet Splitter
Split a multi-sheet workbook into independent files by sheet name, with ZIP output
Conversion & Encoding
XLSX Sheet to CSV Pack
Export each Excel worksheet as an individual CSV file and include a manifest with schema/statistics
Conversion & Encoding
XML to CSV Converter
Convert XML data to CSV format with customizable parsing options

Related Tags

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.

JSON

83 Tools

Access 83 online JSON tools for formatting, validating, and converting data. Process files securely on our servers with automatic deletion after 6 hours.

Conversion

174 Tools

Access 174 online conversion tools for files and data. Process formats securely on our servers with automatic file deletion after 6 hours.

Format Conversion

128 Tools

Convert between data structures and file formats including JSON, XML, CSV, and PDF. Secure server-side processing with automatic file deletion after 6 hours.

Excel

52 Tools

Access 52 online tools for Excel, XLSX, and XLS files. Convert, format, and process spreadsheet data securely without software installation.

XLSX

44 Tools

Access 44 online tools to process, convert, and manage XLSX spreadsheet files. Secure server-side processing with automatic file deletion after 6 hours.

FAQ

What types of CSV operations are supported?

You can convert CSV to other formats like JSON or XML, validate data structures, and perform bulk transformations. These tools handle comma-separated values efficiently through our server-side infrastructure.

Is my data secure when using these CSV tools?

Yes. While you interact with the tools in your browser, processing occurs on Elysia Tools servers. Text inputs are never stored, and any uploaded CSV files are automatically deleted after 6 hours.

Do I need to install any software to process CSV files?

No installation is required. All CSV tools operate within your web browser, utilizing our remote servers to perform data processing and file conversions.