# JSON

Browse 107 online JSON tools to validate, format, convert, and manage JSON data and files in your browser.

> Canonical page: https://elysiatools.com/en/tags/json

## Overview

Use JSON tools to validate, format, convert, and manage JSON data through a browser-based interface. No software installation is needed, and the collection includes 107 tools for common JSON workflows.

## Frequently asked questions

### What can I do with JSON tools?

You can validate, format, convert, and manage JSON data and files using browser-based tools.

### Do I need to install software to use these JSON tools?

No. You can use the tools through your browser without installing software.

### How is JSON data handled?

Tools are operated through the browser while processing runs on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

## Tools

- [AI Data Normalizer](https://elysiatools.com/en/tools/ai-data-normalizer): AI-powered data format normalization tool that intelligently cleans and standardizes messy data using advanced AI analysis
- [Receipt & Invoice OCR Recognition](https://elysiatools.com/en/tools/ai-image-to-receipt-json): Extract key information from receipt/invoice images and convert to custom JSON format using AI vision models
- [AI ID Card OCR Recognition](https://elysiatools.com/en/tools/ai-ocr-id-card-to-json): Extract key information from ID card images and convert to JSON format using AI vision models for free
- [API Response Contract Validator](https://elysiatools.com/en/tools/api-response-contract-validator): Validate a real API response JSON against the response schema declared in an OpenAPI 3.x specification
- [API Response Diff & Semantic Analyzer](https://elysiatools.com/en/tools/api-response-diff-semantic-analyzer): Compare two API response payloads, highlight field-level diffs, and classify likely functional changes versus harmless runtime drift
- [Audio Silence Map](https://elysiatools.com/en/tools/audio-silence-map): Output silence intervals as JSON and CSV
- [Audio to Text Transcriber (AI)](https://elysiatools.com/en/tools/audio-to-text-transcriber): Transcribe speech from audio (wav/mp3/m4a/flac/ogg/webm/aac) to text, SRT, VTT or JSON using the grok-stt AI model. Up to 10 minutes.
- [Audio Voice Activity Segmentation](https://elysiatools.com/en/tools/audio-voice-activity-segmentation): Detect likely speech-range activity and export speech/non-speech ranges as JSON, CSV, SRT markers, or an FFmpeg cut list.
- [BSON Converter](https://elysiatools.com/en/tools/bson-converter): Encode and decode data to/from BSON (Binary JSON) format
- [Color Token Cascade Generator](https://elysiatools.com/en/tools/color-token-cascade-generator): Turn one primary hex color into a full design-token cascade with primary, accent, neutral, semantic tokens, CSS variables, and Style Dictionary JSON
- [CSON to JSON Converter](https://elysiatools.com/en/tools/cson-to-json): Convert CSON (CoffeeScript Object Notation) data to JSON format
- [CSV/JSON Data Watermarker](https://elysiatools.com/en/tools/csv-json-data-watermarker): Inject visible or signature-style watermark fields into CSV or JSON exports so shared datasets can be traced later
- [CSV to JSON Converter](https://elysiatools.com/en/tools/csv-to-json): Convert CSV data to JSON format with customizable parsing options
- [BOM Character Remover](https://elysiatools.com/en/tools/data-bom-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 Normalizer](https://elysiatools.com/en/tools/data-normalizer): Pure code-based data format normalization tool that cleans and standardizes messy data using programmatic logic
- [Dataset Imbalance Detector & Resampler](https://elysiatools.com/en/tools/dataset-imbalance-detector-resampler): Detect class imbalance in CSV or JSON datasets, compare resampling strategies, and preview a balanced output dataset
- [Dataset Quality Profiler](https://elysiatools.com/en/tools/dataset-quality-profiler): Profile CSV or JSON datasets for missing values, duplicate rows, format drift, type inference, and numeric outliers
- [Distributed Trace Decoder & Waterfall Visualizer](https://elysiatools.com/en/tools/distributed-trace-decoder-waterfall-visualizer): Decode Jaeger, Zipkin, or OpenTelemetry trace JSON and render span timing, dependencies, and error hotspots as an interactive waterfall report
- [ECharts Theme Token Extractor](https://elysiatools.com/en/tools/echarts-theme-token-extractor): Extract design tokens — colors, numbers, font sizes and strings — from an ECharts theme JSON and export them straight into your design system. Paste a theme object (the kind registered via echarts.init(dom, themeName)) and the tool walks every leaf, tagging each color (with optional named/rgb → hex normalization), spacing number, font size and string, then emits clean CSS variables, a Tailwind theme.extend config, Style Dictionary tokens.json, or SCSS variables. Bridges the gap between an ECharts visualization theme and Figma/CSS/Tailwind design tokens without copying each value by hand.
- [EDN to JSON Converter](https://elysiatools.com/en/tools/edn-to-json): Convert EDN (Extensible Data Notation) data to JSON format
- [Encrypted PDF Converter](https://elysiatools.com/en/tools/encrypted-pdf-converter): Open password-protected PDFs with OpenDataLoader and export them as Markdown, JSON, or text once the correct password is provided
- [Environment Config Diff Visualizer](https://elysiatools.com/en/tools/environment-config-diff-visualizer): Compare dev, staging, and production configuration bundles across JSON, YAML, TOML, or ENV formats and highlight drift, missing keys, and cleanup suggestions
- [Excel Formula Evaluator](https://elysiatools.com/en/tools/excel-formula-evaluator): Evaluate bounded Excel-style formulas against JSON cell values and explain results, references, and spreadsheet errors.
- [Excel to JSON Converter](https://elysiatools.com/en/tools/excel-to-json): Convert Excel file to JSON format, extracting data from the first worksheet

## Related content

- [Conversion](https://elysiatools.com/en/tags/conversion): Browse 369 online conversion tools for transforming data and files between supported formats. Use them in your browser with secure server-side processing.
- [Format Conversion](https://elysiatools.com/en/tags/format-conversion): Browse 142 format conversion tools for converting files and data between supported formats in your browser.
- [CSV](https://elysiatools.com/en/tags/csv): Browse 68 online CSV tools for processing, converting, validating, and managing comma-separated data. No software installation is needed.
- [Data Processing](https://elysiatools.com/en/tags/data-processing): Browse 130 online data processing tools for working with data through your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.
- [API](https://elysiatools.com/en/tags/api): Browse 35 online API tools for processing, converting, validating, and managing API data in your browser.
- [Text](https://elysiatools.com/en/tags/text): Browse 311 online text tools for processing, converting, validating, and managing text, strings, words, and characters in your browser.