kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
csvjson.tools
JSON Formatter & Validator
Convertio
JSON Editor Online
CSVJSON
JSON Formatters
JSON to CSV
JSONtoCSV.wiki
csvjson is a free, browser-based toolkit for converting data between the formats developers and analysts use daily: JSON, CSV, Excel, YAML, XML, SQL, and more. Every conversion runs entirely in your browser. Nothing is uploaded to a server. Nothing is logged. No account required, no file size limits. Converters include: JSON โ CSV, Excel, YAML, XML, SQL, TSV CSV โ JSON, Excel, SQL Excel โ JSON, CSV XML โ JSON, YAML โ JSON, NDJSON โ JSON Developer tools include: JSON Formatter, Validator, Schema Validator JSON Path Finder, Flatten JSON JWT Decoder, Regex Tester, Diff Checker SQL Formatter, Cron Builder Base64, URL Encode/Decode, Hash Generator (SHA-256/512) UUID Generator, Timestamp Converter CSV Viewer/Editor, CSV Cleaner QR Code Generator, Markdown Preview Developers use it to transform API responses, generate SQL seed data, decode JWTs, and validate schemas. Analysts use it to clean and reformat exports before loading into Excel or Sheets. Non-technical users use it to open a JSON file or convert a CSV without writing any code. Most online converters upload your data to their servers. csvjson processes everything locally using JavaScript โ your data never leaves your device. This matters for anyone handling production data, customer records, or anything governed by data privacy policies
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Beyond Compare - Beyond Compare allows you to compare files and folders.
JSON Formatter & Validator - The JSON Formatter was created to help with debugging.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Convertio - File Conversion in the Cloud
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
JSON Editor Online - View, edit and format JSON online