Who should use LeanImage?

LeanImage is a consumer product built for firefox users who need local image compression.

Yes — LeanImage is free to use.

What platforms does LeanImage run on?

LeanImage runs on the web and embeddable surfaces.

Is LeanImage still maintained?

Unverified. LeanImage 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 LeanImage?

Similar projects tracked by PulseGate include LeanImg, LiteIMG, and Compress Image.

Who develops LeanImage?

LeanImage is developed by Painee.

How long has LeanImage been around?

LeanImage first shipped in 2026.

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LeanImage

Name: LeanImage
Author: Painee

mozilla.orgCompression & format conversion

LeanImage is a Firefox extension for compressing local JPG, PNG, and WebP images into JPEG or WebP files. It provides side-by-side previews, file-size comparisons, and downloads the compressed copies through Firefox.

FreeWebEmbeddable

Visit mozilla.org

Overview

6 features

In the Compression & format conversion space, LeanImage takes a focused approach. It focuses on reducing image file sizes locally without uploading images to an external service. It is built as a consumer product for firefox users who need local image compression. It is available for free. LeanImage is available on the web and embeddable surfaces.

Painee builds and maintains LeanImage, and it first shipped in 2026. Among its 6 catalogued features are local compression, JPEG conversion, and webP conversion. The interface is available in 32 languages, including Czech, German, and Greek.

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

Local compression
JPEG conversion
WebP conversion
Side-by-side preview
File-size comparison
Firefox Downloads

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sept · 01:46 UTC
LeanImage verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about LeanImage

What is LeanImage?: LeanImage focuses on reducing image file sizes locally without uploading images to an external service. It is catalogued under Compression & format conversion on PulseGate.
Who should use LeanImage?: LeanImage is a consumer product built for firefox users who need local image compression.
Is LeanImage free?: Yes — LeanImage is free to use.
What platforms does LeanImage run on?: LeanImage runs on the web and embeddable surfaces.
Is LeanImage still maintained?: Unverified. LeanImage 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 LeanImage?: Similar projects tracked by PulseGate include LeanImg, LiteIMG, and Compress Image.LeanImg LiteIMG Compress Image
Who develops LeanImage?: LeanImage is developed by Painee.
How long has LeanImage been around?: LeanImage first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 12 Sept 2026
Built for: Firefox users who need local image compression
Model: B2C
Solves: Reducing image file sizes locally without uploading images to an external service.

Registered as

Firefox Add-ons: leanimage

Developer

Painee

Index record

Indexed: 12 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 12 Sept 2026

Identity audit (13)

Slug: leanimage-mozilla-org
Lifecycle state recorded: 12 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 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.
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: 12 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/leanimage

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