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90+ free browser-based developer tools — JSON, encoding, hashing, CSS, code formatting, and more. All instant, all free.

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JSON & Data

Format, convert, and analyze JSON and data formats

14 tools

What's in this toolkit

14 free tools — click any tab above to use them

JSON Formatter & Validator

Paste raw or minified JSON and get it instantly formatted with proper indentation and syntax validation.

Debug malformed API responses
Prettify minified config files
Validate JSON before committing to version control
JSON Minifier

Strip all whitespace and comments from JSON to reduce payload size for APIs and config files.

Reduce REST API response size
Compress config files for production
Minimize JSON for localStorage or cookies
JSON Repair

Fix common JSON syntax errors like trailing commas, unquoted keys, and missing brackets automatically.

Fix JSON copied from logs with trailing commas
Repair hand-edited config files
Clean up JSON exported from non-standard tools
CSV to JSON

Upload or paste CSV data and convert it to a JSON array with auto-detected headers.

Import spreadsheet data into a web app
Convert Excel exports for API consumption
Transform CSV reports into JSON for processing
JSON to CSV

Export a flat JSON array to comma-separated CSV format, ready to open in Excel or Google Sheets.

Export API data to spreadsheets
Convert database JSON exports to CSV reports
Share JSON data with non-technical team members
JSON to YAML

Convert JSON objects to YAML format for Kubernetes configs, CI/CD pipelines, and human-readable configs.

Create Kubernetes manifests from JSON
Write GitHub Actions workflows from JSON config
Convert OpenAPI JSON spec to YAML
YAML to JSON

Parse YAML documents and convert them back to JSON for APIs, tooling, and programmatic use.

Convert Kubernetes YAML back to JSON for tooling
Parse GitHub Actions config into JSON
Migrate YAML settings to JSON-based systems
JSON to XML

Transform JSON data into valid XML markup — useful for SOAP APIs, legacy systems, and data exchange.

Integrate with SOAP or XML-based APIs
Convert data for legacy enterprise systems
Generate XML feeds from JSON data sources
XML to JSON

Convert XML documents to JSON so you can work with them in modern JavaScript and REST APIs.

Parse XML API responses into JSON
Migrate legacy XML configs to modern JSON
Convert RSS/Atom feeds to JSON for web apps
JSON to TypeScript

Generate TypeScript interfaces and type definitions automatically from any JSON object or array.

Scaffold TypeScript types from API responses
Speed up type-safe frontend development
Document data structures without writing boilerplate
JSON to Markdown Table

Turn a JSON array of objects into a formatted Markdown table for documentation and README files.

Add data tables to GitHub README files
Document API response structures in Markdown
Generate comparison tables for technical docs
JSON Diff

Paste two JSON documents side by side and instantly see every addition, deletion, and change highlighted.

Compare API responses before and after a change
Audit config file differences
Review data migrations for correctness
JSONPath Query

Run JSONPath expressions (like $.store.book[*].author) against any JSON to extract nested values.

Extract specific fields from deeply nested API responses
Filter arrays within JSON by condition
Prototype JSONPath queries before using in code
CSV Table Viewer

Parse CSV files and render them as a sortable, searchable HTML table with column filtering.

Preview CSV exports before importing
Explore large CSV datasets in the browser
Search and filter tabular data without Excel