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JSON Toolbox by mackan.eu
Format, convert, repair, compare JSON in your browser
JSON Toolbox is one page that replaces three or four separate sites: format and minify JSON, validate it, repair broken JSON, diff two documents to see what changed, and convert between JSON and CSV, XML, or YAML. Everything runs client-side in the browser, so pasted JSON, whether it is an API response, a config file, or anything else sensitive, is never uploaded to a server. No signup, no ads, dark mode included.
I built this after switching between three or four different JSON sites in the same debugging session: one to format, another to diff, another to convert. JSON Toolbox puts all of that in one tab, and none of it touches a server. Open the network tab while you use it, nothing fires.
It is free, with no account and no ads. I maintain it myself, so feedback and feature requests are welcome.
Love that everything runs client-side, makes it actually safe to paste real API responses without thinking twice. The all-in-one approach beats bookmarking five separate tools.
The client-side approach is what sold me here, no more pasting sensitive API payloads into random web tools and hoping for the best. The JSON to YAML conversion worked cleanly on a messy config I threw at it.
the all-in-one approach is genuinely useful, especially having repair and diff right next to the formatter. the client-side only promise sealed it for me since i often paste real api responses i would not want hitting a random server.
Runs entirely in the browser, which is a huge plus when dealing with sensitive API responses. The diff tool caught a subtle key change between two configs for me in seconds.
client-side JSON tools are always appreciated, and the no upload angle is a real plus for working with sensitive configs. one thing that would make this a daily driver for me is a jsonpath or jq style query bar so you can extract or filter specific keys from a messy payload without scrolling endlessly.
would love to see a JSONPath query field next to the tree view so I can filter or extract specific nodes without leaving the page.
About JSON Toolbox by mackan.eu on Product Hunt
“Format, convert, repair, compare JSON in your browser”
JSON Toolbox by mackan.eu was submitted on Product Hunt and earned 5 upvotes and 7 comments, placing #160 on the daily leaderboard. JSON Toolbox is one page that replaces three or four separate sites: format and minify JSON, validate it, repair broken JSON, diff two documents to see what changed, and convert between JSON and CSV, XML, or YAML. Everything runs client-side in the browser, so pasted JSON, whether it is an API response, a config file, or anything else sensitive, is never uploaded to a server. No signup, no ads, dark mode included.
JSON Toolbox by mackan.eu was featured in Productivity (656.2k followers), Developer Tools (515.9k followers) and Tech (628k followers) on Product Hunt. Together, these topics include over 388.4k products, making this a competitive space to launch in.
Who hunted JSON Toolbox by mackan.eu?
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