6 free tools.
No account, no upload.

Small, sharp utilities for the parts of any job that involve links, metadata and color — whether you ship software, run campaigns or just have four hundred bookmarks. Every one of them runs entirely in your browser; there is no server behind these pages to send your data to.

Client-side only. Open the Network tab and check.

Bookmark cleaner

Find duplicates, dead weight and empty folders in your bookmark export.

  • bookmark cleaner
  • remove duplicate bookmarks
  • find duplicate bookmarks chrome
Open

URL cleaner

Paste messy links, get clean ones. Removes utm_, fbclid, gclid and friends.

  • remove utm parameters from url
  • url cleaner
  • strip tracking parameters
Open

Open Graph preview

Paste your <head>, see the Google, X, Facebook, LinkedIn and Slack cards.

  • open graph preview
  • og tag generator
  • twitter card validator
Open

Favicon checker

See a domain's icon at 16, 32, 48, 180 and 512px, and get the correct link tags.

  • favicon checker
  • favicon preview
  • favicon size
Open

Contrast checker

Check a pair against WCAG 2.2, and get the nearest shade that passes.

  • contrast checker
  • wcag contrast ratio
  • accessible color checker
Open

Voice notes

Talk, get text. Uses the Web Speech API built into your browser.

  • voice to text online
  • free dictation tool
  • web speech api demo
Open

The writing behind them

Each tool exists because we wrote about the problem first.

The product these came from

Inspistor keeps every link a project depends on in one place — consoles, docs, libraries, research, references. Unlimited nesting, voice notes, Cmd+K search.

See what it does