Diagram Lens

What it can reach

Specific sites only: 3 match patterns.

• https://kroki.io/*
• https://api.web3forms.com/*
• https://nom.telemetrydeck.com/*

• See the address and title of every tab you have open tabs
• Act on the current tab, but only after you click it activeTab
• Store data in your browser storage

The full permission history for this extension →

The publisher

northfieldapps publishes 2 listings we track, 8 users between them.

1. Formerly Free northfieldapps · Productivity · Tools · published 2026-02-20 4 users

Like this one

Listings the catalog judges closest in what they say they do.

1. DrakoFlow Diagram Renderer Describes nearly the same job, smaller audience 3 users
2. Beauty Diagram Describes nearly the same job, smaller audience 8 users ★ 5.0
3. Myrmaid Describes nearly the same job, smaller audience 18 users
4. Mermaid Anywhere — Diagram Renderer Describes nearly the same job, smaller audience 49 users
5. Simple Mermaid Preview Describes nearly the same job, smaller audience 140 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.