Observed arrival · 2026-09-22
bidouille.dev’s 46-tool browser toolbox
A privacy-first collection of 46 developer utilities for encoding, conversion, text work, validation, networking, and time calculations.
- For
- Developers, analysts, and privacy-conscious web users
- Worth noticing
- The catalog spans CIDR subnetting, JSONPath, cron schedules, JWT inspection, color conversions, and local-image data URIs.
Field notes
The library is organized as a compact browser workbench rather than a single-purpose calculator. Its categories cover both routine transformations—such as case conversion, line sorting, and text escaping—and more specialized checks including Luhn validation, Unix permissions, JSONPath queries, and IPv4/IPv6 classification. The homepage also exposes search and favorites controls, while its client-side-only label indicates that the stated privacy model is part of the product’s visible interface.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue