CapyToolkit
CapyToolkit is a zero-cloud workbench for the jobs that interrupt development: decoding a JWT before it expires, reformatting a messy API response, testing one regex against five edge cases, or checking what a cron expression schedules. The collection holds 45 free tools, and the browser does all the work. The developer stack covers JSON formatting and tree browsing, a live regex tester with match debugging, JWT claims inspection, cron parsing, Base64 text and file conversion, hash generation across MD5, SHA-1, SHA-256, SHA-512, and HMAC, and UUID v1, v4, and v7. A SQL workbench queries local Parquet, CSV, and JSON files in place, and a log explorer filters and graphs files past 500 MB using Web Workers and IndexedDB. The same rules apply suite-wide: nothing is uploaded, nothing is stored, and no account is required. A prompt token counter estimates cost for dozens of LLM models, and a PII scrubber strips secrets before you paste logs into an AI chat.
Submitted by dir
Reward: 5 credits per test
0 approved tests, 0 total
Built for: general
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