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h264ify (V3)

Chrome extension by Master Tools · Productivity · Workflow

A Chrome extension in Productivity · Workflow with 1 000 users, a small but real audience. Audience over the last 30 days: unchanged.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
1 000
Rating
4.0 (4 ratings)
Users, last 30 days
Unchanged (the store rounds this count to 1 000, so it moves only between steps)
Rating, last 30 days
Steady over 30 days
Version
3.0.0
Updated in the store
2024-08-07
Published
2024-08-07
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
unchanged since 30.09
1k · 1 reading
  1. 2026-10-301k
Rating
unchanged since 30.09
reviewsrating 4.00 · 1 reading
  1. 2026-10-30reviews4rating4.00
Users
unchanged since 31.08
1k · 2 readings
  1. 2026-08-311k
  2. 2026-10-301k
Rating
unchanged since 31.08
reviewsrating 4.00 · 2 readings
  1. 2026-08-31reviews4rating4.00
  2. 2026-10-30reviews4rating4.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • Run its own code on the pages it can access scripting
  • 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

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Master Tools publishes 8 listings we track, 204k users between them.

  1. Location Guard (V3) Master Tools · Make Chrome Yours · Accessibility · published 2025-01-13 100k users ★ 4.2
  2. Proxy SwitchyOmega (V3) Master Tools · Productivity · Developer · published 2024-08-06 100k users ★ 3.4
  3. Global Speed Accelerator Master Tools · Make Chrome Yours · Accessibility · published 2024-02-26 1k users ★ 5.0
Show 4 more from this publisher
  1. SEO META in 1 CLICK (V3) Master Tools · Productivity · Developer · published 2024-08-15 868 users ★ 5.0
  2. Dumbload (Free Video Downloader) Master Tools · Productivity · Tools · published 2024-08-30 379 users ★ 3.0
  3. JSON Viewer Master Tools · Productivity · Developer · published 2024-09-04 349 users ★ 5.0
  4. Youtube Ad Cleaner Master Tools · Productivity · Workflow · published 2024-07-31 49 users ★ 3.7

Like this one

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

  1. h264ify Describes nearly the same job, with a large installed audience 1.0M users ★ 4.6
  2. YouTube H.264 Optimizer Describes nearly the same job, smaller audience 1k users ★ 4.8
  3. enhanced-h264ify Describes nearly the same job, with a large installed audience 200k users ★ 4.7
  4. Video Encoding Format Blocker Describes nearly the same job, smaller audience 166 users
  5. Video Quality Fixer for YouTube Describes nearly the same job, smaller audience 5k users ★ 4.2

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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/cahkoilpkmfhmjeejjkldgkfccjnogam/badge.svg)](https://extops.dev/extensions/cahkoilpkmfhmjeejjkldgkfccjnogam)

HTML

<a href="https://extops.dev/extensions/cahkoilpkmfhmjeejjkldgkfccjnogam"><img src="https://extops.dev/extensions/cahkoilpkmfhmjeejjkldgkfccjnogam/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store has not changed these figures since 2026-08-31, when we first saw this listing. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built