# 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.

## Facts
- Category: Developer tools
- Platforms: Web, Windows
- Built for: developers
- Listed since: September 2026
- Approved tests: 1 (2 total)
- Link: https://capytoolkit.com

## FAQ
### Is CapyToolkit legit?
CapyToolkit was listed on IndieAppCircle in September 2026 by CapyToolkit, who opened it to independent testers. 1 independent tester has used it since and had their feedback accepted by the maker (2 tests submitted in total). It is distributed through its own website at capytoolkit.com. IndieAppCircle is a peer feedback exchange, not a paid-review site: testers earn credits only for feedback the maker accepts, and nobody is paid to be positive.

### What platforms does CapyToolkit run on?
CapyToolkit runs on Web and Windows. The maker built it for developers.

### Is CapyToolkit still looking for testers?
Yes. The maker pays 5 credits for each approved test on IndieAppCircle.

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Full page: https://www.indieappcircle.com/apps/j574ahkjexmtxhrywy32gg4mr18dx9kb