Developer Tool, Productivity

KiloCell

1,001 free browser tools for developers: JSON, Base64, JWT, regex, cron

KiloCell

About KiloCell

KiloCell (千格) turns everyday small tasks into single pages you open and use. It has 1,001 tools across about 50 categories — developer utilities (JSON formatter, Base64, JWT decoder, regex tester, cron, hash, SQL/XML/YAML formatters), text, time, generators, image tools, converters and calculators. Tool inputs are processed in your browser by default and are not uploaded to KiloCell servers. Free, no account, in English and Chinese.

Who is KiloCell for?

Developers, students, office workers and anyone who needs a quick one-off task done — format JSON, decode a JWT, test a regex, compress an image — without installing software or creating an account.

How does KiloCell work?

Open a tool page, paste or drop your input, and copy or export the result. Tool inputs are processed in your browser by default and are not uploaded to KiloCell servers. Press "/" to search, star favorites, and switch between English and Chinese.

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