Json-Pi - The modern workspace for Json Developers
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Json-Pi is a fast, free, in-browser tool to parse, auto-fix, convert, query, and visualize JSON, YAML, CSV, and Excel data. Everything runs locally ā no data leaves your device.
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What makes Json-Pi different?
ā” Extremely fast processing engine
Handles complex nested structures and large payloads in milliseconds.
ā” Supports complex querying & deep JSON analysis at high speed.
ā Auto-fixes broken JSON
(single quotes, trailing commas, malformed payloads, smart quotes, unquoted keys, etc.)
ā Interactive Playground to test APIs instantly
ā Public Developer APIs available for multiple languages:
Python
JavaScript
cURL
Go
Ruby
PHP
Java
ā Parse JSON & YAML through APIs
ā Convert:
JSON ā YAML
CSV / Excel ā JSON
Nested structures ā usable objects
ā JSON Schema generation + validation
ā JSON Diff viewer
(compare changes visually)
ā Explain JSON structures interactively
ā Multiple viewing modes: Tree, Table, Raw, Beautified, Formatted
ā Export to: JSON, CSV, XLSX, HTML, PDF, TXT
ā Works locally in-browser for privacy
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