Small tools that do one job well.

No accounts, no popups, no "upgrade to export". Each tool runs entirely in your browser — nothing you type is sent anywhere.

UTM Campaign URL Builder →Build a tracked link from a base URL + campaign parameters, with naming-consistency warnings and a CSV-exportable history. Cron Expression Explainer →Paste a cron expression, get a plain-English description, a field-by-field breakdown, and the next run times. URL Slug Generator →Turn titles into clean, SEO-friendly slugs — accents transliterated, options for separators, length, stop-words; batch mode included.

Why these?

Most "online tools" sites are 90% ads and 10% tool. This one is the other way round. Tools get added when they're genuinely useful and missing a good free version — not to fill a page. If you want one, the source is open and adding a tool is a single new folder.

Privacy

There's no server doing the work — the JavaScript on each page does it locally. Nothing you paste into a tool leaves your machine. Basic visit counts (page views) may be collected by the host; no per-user tracking.

Liked these tools? Keep them ad-free.

No signups, no popups, no "upgrade to export" — these tools are made and kept free because some folks support the work. If something here saved you a minute, a coffee helps me keep making more.

Buy me a coffee — ko-fi.com/lancelabs