Every JSON tool, in one place
A complete suite of 39 tools for formatting, validating, viewing, comparing and converting JSON — all free and fully client-side.
Format & Validate
Clean up, fix, and verify JSON until it's production-ready.
JSON Formatter
Beautify, minify, and repair messy JSON — even Python dicts and JS objects — into clean, valid output.
JSON Editor
Edit JSON four ways — code, tree, table, and grid — all on one document.
JSON Validator
Validate, verify, and check JSON — every syntax error pinpointed by line and column.
JSON Repair Tool
Paste broken JSON and get valid JSON back — with a list of every fix applied.
JSON Schema Validator
Check that your JSON matches a JSON Schema — with every error pinpointed by path.
JWT Decoder & Verifier
Decode a JWT's header and payload, and verify its signature — right in your browser.
View & Explore
See your data the way that suits it — tree, table, or grid.
JSON Viewer
View JSON data and objects online — syntax highlighting, collapsible nodes, free and private.
JSON File Viewer
Drag, drop, and read any JSON file — plus CSV, Excel, and ZIP — instantly in your browser.
JSON Tree Viewer
Turn JSON into an interactive, searchable tree you can expand and collapse.
JSON Table Viewer
View arrays of JSON objects as a sortable, filterable table.
JSON Grid Viewer
View JSON in a spreadsheet grid online — drill into nested objects and arrays, cell by cell.
JSON Graph Viewer
Turn JSON into an interactive node diagram — pan, zoom, fold branches, and export the picture.
JSONL Viewer
Open .jsonl and .ndjson files, read every record as a table, and keep going when a line is malformed.
Markdown Viewer
Open a .md file or a GitHub README and read it rendered — or write Markdown with a live preview beside it.
JSON Blob
Share a blob of JSON with one link — the data travels inside the link, never on a server.
Compare & Search
Find what changed and what matters across documents.
Convert
Move between JSON, YAML, and CSV without losing fidelity.
JSON to YAML Converter
Convert JSON into clean, human-friendly YAML in one click.
YAML to JSON Converter
Convert YAML configuration into valid, formatted JSON in one click.
JSON to CSV Converter
Convert JSON to CSV online — transform any JSON array or JSON format into spreadsheet-ready CSV for Excel or Sheets.
CSV to JSON Converter
Convert CSV, TSV, or Excel spreadsheets into a clean JSON array of objects — free and instant.
JSON to Excel Converter
Convert JSON into a real Excel (.xlsx) spreadsheet — download it and open in Excel, Google Sheets, or Numbers.
Excel to JSON Converter
Upload an Excel (.xlsx) spreadsheet and get a clean JSON array of objects — instant, typed, and private.
JSON to TOON Converter
Turn JSON into TOON for LLM prompts — and see exactly how many tokens it saves.
TOON to JSON Converter
Decode TOON into standard JSON — and catch truncated or malformed model output by line.
JSON Mapper
Reshape JSON from one schema to another — fields matched by name, arrays mapped item by item, code generated.
JSON to Markdown Converter
Turn JSON into Markdown tables and lists ready for READMEs, docs, and GitHub.
Text to Markdown Converter
Paste anything — a web page, a Google Doc, JSON, CSV, YAML, XML, or plain text — and get clean Markdown with a live preview.
JSON to XML Converter
Convert JSON into well-formed, indented XML in one click.
XML to JSON Converter
Convert XML documents into clean, structured JSON in one click.
JSON Stringify & Escape
Escape any text into a JSON string — or unescape an escaped string back to raw text.
JSON to TypeScript Converter
Turn a JSON sample into clean, ready-to-use TypeScript interfaces in one click.
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text — instantly, in your browser.
JSON to XSD Converter
Generate an XSD schema from JSON — types, nesting, and arrays inferred automatically, no upload needed.
XML to XSD Converter
Generate an XSD schema from any XML — free XML schema generator, element types and attributes inferred automatically.
XSD to JSON Converter
Convert XSD to JSON — generates a sample JSON object from your schema, types and enumerations included.
XSD to XML Converter
Generate sample XML from an XSD schema — free XSD to XML generator, types and attributes filled in automatically.
XML / JSON / XSD Converter
Convert between JSON, XML, and XSD in any direction — paste once, see two outputs side by side.
Stop pasting JSON into sketchy websites.
Open a tool and get to work in one click. No account, no upload, no tracking — just you and your data.