Who is User Agent Switcher for?

User Agent Switcher is a consumer product built for firefox users and web developers testing browser compatibility.

Is User Agent Switcher free?

Yes — User Agent Switcher is free to use.

What platforms does User Agent Switcher run on?

User Agent Switcher runs on the web and embeddable surfaces.

Is User Agent Switcher still maintained?

Unverified. User Agent Switcher 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 User Agent Switcher?

Similar projects tracked by PulseGate include Threat UA Switcher, UserAgent Themes Switcher, and User-Agent模拟器.

Who makes User Agent Switcher?

User Agent Switcher is developed by ntninja.

How long has User Agent Switcher been around?

User Agent Switcher first shipped in 2017.

Back to the index

User Agent Switcher

Name: User Agent Switcher
Author: ntninja

gitlab.comBrowser DevTools & extensions

Easily override the browser's User-Agent string. Details/Readme/Downloads: https://addons.mozilla.org/firefox/addon/uaswitcher/?utm_source=gitlab

FreeWebEmbeddable

Visit gitlab.com

Overview

5 features

User Agent Switcher is a Browser DevTools & extensions project. It focuses on testing or accessing websites that require a different browser User-Agent string. It is built as a consumer product for firefox users and web developers testing browser compatibility. It is available for free. It ships for the web and embeddable surfaces.

Behind User Agent Switcher is ntninja, and it first shipped in 2017. Key capabilities include user-Agent override, browser simulation, and firefox integration.

User-Agent override
Browser simulation
Firefox integration
Per-site switching
Custom User-Agents

Built with & integrations

Framework

Rails

Hosting

Cloudflare

AI providers

openai

Runs on

BrowserEmbeddable

Detected from

Cloudflare: cf-ray header · cf-cache-status header

Trust & compliance

Verified signals

HTTPSFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed7 Sept · 22:56 UTC
User Agent Switcher verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about User Agent Switcher

What does User Agent Switcher do?: User Agent Switcher focuses on testing or accessing websites that require a different browser User-Agent string. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is User Agent Switcher for?: User Agent Switcher is a consumer product built for firefox users and web developers testing browser compatibility.
Is User Agent Switcher free?: Yes — User Agent Switcher is free to use.
What platforms does User Agent Switcher run on?: User Agent Switcher runs on the web and embeddable surfaces.
Is User Agent Switcher still maintained?: Unverified. User Agent Switcher 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 User Agent Switcher?: Similar projects tracked by PulseGate include Threat UA Switcher, UserAgent Themes Switcher, and User-Agent模拟器.Threat UA Switcher UserAgent Themes Switcher User-Agent模拟器
Who makes User Agent Switcher?: User Agent Switcher is developed by ntninja.
How long has User Agent Switcher been around?: User Agent Switcher first shipped in 2017.

At a glance

Pricing: Free
Platforms: Web · API
Languages: English
First seen: 7 Sept 2026
Built for: Firefox users and web developers testing browser compatibility
Model: B2C
Solves: Testing or accessing websites that require a different browser User-Agent string.

Registered as

Firefox Add-ons: uaswitcher

Developer

ntninja

Index record

Indexed: 7 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 7 Sept 2026

Identity audit (12)

Slug: user-agent-switcher-gitlab-com
Lifecycle state recorded: 7 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 7 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 7 Sept 2026
Canonical URL: https://gitlab.com/ntninja/user-agent-switcher

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do