Who is Ultrawidify for?

Ultrawidify is an open-source project built for people watching ultrawide and widescreen videos in web browsers.

What platforms does Ultrawidify run on?

Ultrawidify runs on the web and embeddable surfaces.

Is Ultrawidify still active?

Unverified. Ultrawidify has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Ultrawidify?

Similar projects tracked by PulseGate include UltraWide Video 21:9, Ultrawide Netflix, and Ultrawider.

Who makes Ultrawidify?

Ultrawidify is developed by tamius-han.

How long has Ultrawidify been around?

Ultrawidify first shipped in 2016.

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Ultrawidify

Name: Ultrawidify
Author: tamius-han

github.comVideo & media players

Ultrawidify is an open-source browser extension for correcting improperly encoded ultrawide and widescreen videos. It adjusts video aspect ratios, removes letterboxing and pillarboxing, and supports playback across major browsers.

Open SourceWebEmbeddable

Visit github.com

Overview

10 features

In the Video & media players space, Ultrawidify takes a focused approach. It focuses on fixing incorrectly encoded ultrawide videos and removing distracting borders during playback. Ultrawidify is an open-source project aimed at people watching ultrawide and widescreen videos in web browsers. Ultrawidify is open source under the Open Source license. It runs on the web and embeddable surfaces.

Behind Ultrawidify is tamius-han, and it first shipped in 2016. Among its 10 catalogued features are aspect ratio correction, letterbox removal, and pillarbox removal.

Summary written by a language model from the project’s public pages.

Aspect ratio correction
Letterbox removal
Pillarbox removal
Ultrawide video support
Video zoom
Crop controls
Keyboard shortcuts
Firefox support
Chrome support
Edge support

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 03:53 UTC
Ultrawidify verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Ultrawidify

What does Ultrawidify do?: Ultrawidify focuses on fixing incorrectly encoded ultrawide videos and removing distracting borders during playback. It is catalogued under Video & media players on PulseGate.
Who is Ultrawidify for?: Ultrawidify is an open-source project built for people watching ultrawide and widescreen videos in web browsers.
Is Ultrawidify free?: Yes — Ultrawidify is open source under the Open Source license and free to use.
What platforms does Ultrawidify run on?: Ultrawidify runs on the web and embeddable surfaces.
Is Ultrawidify still active?: Unverified. Ultrawidify has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Ultrawidify?: Similar projects tracked by PulseGate include UltraWide Video 21:9, Ultrawide Netflix, and Ultrawider.UltraWide Video 21:9 Ultrawide Netflix Ultrawider
Who makes Ultrawidify?: Ultrawidify is developed by tamius-han.
How long has Ultrawidify been around?: Ultrawidify first shipped in 2016.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 8 Sept 2026
Built for: people watching ultrawide and widescreen videos in web browsers
Model: Open source
Solves: Fixing incorrectly encoded ultrawide videos and removing distracting borders during playback.

Registered as

Firefox Add-ons: ultrawidify

Developer

tamius-han

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (13)

Slug: ultrawidify-github-com
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 8 Sept 2026
Canonical URL: https://github.com/tamius-han/ultrawidify

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