What does Mobile View Tester do?

Mobile View Tester focuses on testing how websites appear on mobile screens without using a separate device. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Mobile View Tester for?

Mobile View Tester is an open-source project built for web developers and browser extension users.

Does Mobile View Tester have a free plan?

Yes — Mobile View Tester is open source under the Open Source license and free to use.

What platforms does Mobile View Tester run on?

Mobile View Tester runs on the web and embeddable surfaces. It can also be self-hosted.

Is Mobile View Tester still maintained?

Unverified. Mobile View Tester 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 projects are similar to Mobile View Tester?

Similar projects tracked by PulseGate include Side View, Mobile DevTools, and Mobile phone emulator.

Who develops Mobile View Tester?

Mobile View Tester is developed by nabendu82.

How long has Mobile View Tester been around?

Mobile View Tester first shipped in 2020.

Back to the index

Mobile View Tester

Name: Mobile View Tester
Author: nabendu82

github.comInfrastructure

Mobile View Tester is an open-source Firefox extension that helps users preview websites at mobile viewport sizes. It is intended for web developers and testers checking responsive layouts directly in the browser.

Open SourceWebEmbeddableSelf-hosted

Visit github.com

Overview

4 features

Mobile View Tester sits in PulseGate's Browser DevTools & extensions category. It focuses on testing how websites appear on mobile screens without using a separate device. Mobile View Tester is an open-source project aimed at web developers and browser extension users. The project is open source (Open Source). It ships for the web and embeddable surfaces, and it can be self-hosted.

Behind Mobile View Tester is nabendu82, and it first shipped in 2020. Among its 4 catalogued features are mobile viewport preview, responsive layout testing, and firefox toolbar access.

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

Mobile viewport preview
Responsive layout testing
Firefox toolbar access
Website resizing

Built with & integrations

Runs on

BrowserEmbeddableSelf-hosted

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed10 Sept · 04:03 UTC
Mobile View Tester verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Mobile View Tester

What does Mobile View Tester do?: Mobile View Tester focuses on testing how websites appear on mobile screens without using a separate device. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Mobile View Tester for?: Mobile View Tester is an open-source project built for web developers and browser extension users.
Does Mobile View Tester have a free plan?: Yes — Mobile View Tester is open source under the Open Source license and free to use.
What platforms does Mobile View Tester run on?: Mobile View Tester runs on the web and embeddable surfaces. It can also be self-hosted.
Is Mobile View Tester still maintained?: Unverified. Mobile View Tester 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 projects are similar to Mobile View Tester?: Similar projects tracked by PulseGate include Side View, Mobile DevTools, and Mobile phone emulator.Side View Mobile DevTools Mobile phone emulator
Who develops Mobile View Tester?: Mobile View Tester is developed by nabendu82.
How long has Mobile View Tester been around?: Mobile View Tester first shipped in 2020.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 10 Sept 2026
Built for: web developers and browser extension users
Model: Open source
Solves: Testing how websites appear on mobile screens without using a separate device.

Registered as

Firefox Add-ons: mobile-view-tester

Developer

nabendu82

Index record

Indexed: 10 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 10 Sept 2026

Identity audit (13)

Slug: mobile-view-tester-github-com
Lifecycle state recorded: 10 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 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: 10 Sept 2026
Canonical URL: https://github.com/nabendu82/Addons

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

Similar projects

Closest matches by what these projects do