$ free && useful --for=developers
Free tools, built by a programmer, for programmers.
No sign-up. No watermarks. No nonsense — just fast utilities for the stuff you need to do every week.
$ ls services/
Everything you need, in one place
Image Converter
Convert JPG, PNG, GIF, WebP, AVIF and SVG right in your browser — free, fast, no watermark.
Try it → LIVEPerformance Tester
Run Lighthouse-grade speed checks on any URL and get a plain-English breakdown.
Try it → LIVESEO Tester
Audit meta tags, headings, sitemap and crawlability issues in seconds.
Try it → LIVEDev Tools
A growing toolbox of handy utilities for everyday coding — formatters, converters, generators and more.
Try it → LIVEAPI
Free public API endpoints for the toolbox — automate conversions, scans and audits from your own code.
Try it → LIVEUptime Monitor Bot
Ping your site on a schedule and get alerted the moment it goes down.
Try it → FREEIQ Test
Challenge your logic, reasoning, and problem-solving skills with our free IQ test.
Take the Test → FREEOnline Exam
Test your knowledge and skills with our free online exams and practice tests.
Start the Exam →- --no-signup Just use it, no account needed
- --privacy-first Files processed & discarded, never stored
- --free-forever No paywalls, no watermarks
$ cat about.md
Why Programmer Corner
Programmer Corner started as one developer's frustration with ad-choked, watermark-slapping "free" tools. It's now a growing set of no-nonsense utilities for everyday dev work — free, fast, and yours to use without creating an account.
Ready to get things done?
Start with the image converter — the rest of the toolbox is on its way.
Try Image Converter →