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Favicon Generator API

Free#29 of 29 in Favicon Generators

Favicon Generator API: A focused API for discovering, resizing, converting, caching, and serving favicons. Ranked #29 of 29 in Favicon Generators by our editors (6.2/10); pricing: Free plan; best for favicon discovery and delivery APIs.

6.2/10Editor score

Visit Vemetric

Favicon Generator API6.2 Visit Vemetric

At a glance

Editor score
6.2 / 10
Pricing
Free plan
Best for
Favicon discovery and delivery APIs
Free plan
Yes
Paid from
Free
ICO export
Yes
Facts checked
21 Sep 2026

Where it wins
- Discovers icons from tags, manifests, touch icons, and fallback paths
- Supports image or JSON responses with on-the-fly resizing
- Self-hosts with Docker or Bun and supports CDN-friendly cache headers
Where it doesn't
- Focuses on existing favicon assets rather than verified app-icon generation
- Requires API or self-hosted deployment rather than a visual generator interface
- Format conversion and fallback behavior depend on fetched source assets

Our verdict on Favicon Generator API

Favicon Generator API is a free, open-source service for fetching and serving website favicon assets through an HTTP endpoint. It is aimed at developers building interfaces, directories, tools, or services that need to discover and deliver icons without manually mapping each website's favicon location. The API supports hosted use through Vemetric or self-hosting with Docker or Bun, and it can return either image or JSON responses.

Its strongest area is favicon discovery and delivery. The API checks link tags, apple-touch icons, web manifests, and common fallback paths, with an optional Google favicon API fallback for additional discovery coverage. On-the-fly resizing supports delivery at different dimensions, while PNG, JPG, ICO, WebP, and SVG support covers the listed output formats. A configurable fallback image URL provides a defined alternative when the preferred asset is not available. HTTP cache headers also support CDN or proxy integration, which fits applications that serve the same favicon assets repeatedly.

The product's open-source, self-hosted model gives teams control over deployment, while the hosted service is free and uses no API keys. Docker and Bun deployment options make it suitable for developers comfortable with an API-first workflow rather than a point-and-click design tool. Favicon Generator API should be picked when the requirement is to discover, transform, cache, and serve existing website icons. Teams looking for app-icon generation or a broader visual asset creation workflow should choose a different type of tool, because that capability is not established here.

Your product? Our editors can test Favicon Generator API in depth and publish a review, labelled as paid · from $149/mo →

Favicon Generator API pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on vemetric.com

Favicon Generator API fact sheet

Free plan	Yes
Paid from	Free
ICO export	Yes
PNG export	Yes
SVG export	Yes
App icon set	Not verified
Web manifest support	Yes
Batch processing	Not verified
Deployment	Cloud, Self-hosted
Support	Docs
Built for	Solo, Small business, Mid-market (editorial estimate)
Pricing	Free plan
Website	vemetric.com
Facts checked	21 Sep 2026

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Featured on iTechGuides

Favicon Generator API is listed in our Favicon Generators directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update