The open-source, self-hosted alternative to TinyPNG
TinyPNG is a focused online image compressor. SnapOtter is the self-hosted alternative for teams that want compression, conversion, resize, metadata, and other image work to run locally.
SnapOtter vs TinyPNG
| SnapOtter | TinyPNG | |
|---|---|---|
| Deployment model | Self-hosted on your server | Hosted web service |
| File processing location | Your infrastructure | Files are uploaded to a vendor-hosted service for processing |
| Cost control | Free AGPLv3; limits are your hardware | Free web use and paid/developer API options |
| Offline / air-gapped use | Supported when deployed inside your network | Designed for browser-based online use |
| Beyond image compression | Image, video, audio, PDF, and files | Image compression and Tinify API workflows |
| Source and auditability | Source available under AGPLv3 | Vendor-operated service; source availability is not the product model |
| Automation | REST API and pipelines in your deployment | Browser workflow or vendor-managed API, depending on product |
Last reviewed July 1, 2026. Comparison uses publicly available vendor pages and focuses on deployment model, file location, auditability, and workflow fit. Vendor features and plans change; check current docs before deciding. SnapOtter is not affiliated with TinyPNG.
Sources reviewed
One stack, all five file types
TinyPNG is excellent when the job is image compression. SnapOtter compresses PNG, JPEG, WebP, and AVIF, then keeps going with resize, crop, conversion, watermarking, metadata tools, video, audio, PDF, and file workflows.
What you do today with TinyPNG
You drop images into TinyPNG or call the Tinify API, and it compresses them on Tinify's servers, counting each one against a monthly quota.
Why that matters for sensitive files
The originals are uploaded to a third party to be compressed, and the free quota caps you at a few hundred images a month. For product imagery or anything with people or data in frame, that is an upload you may not want to make.
Run it yourself
Self-host in one command
Process a file over the REST API
Frequently asked questions
- Is there a self-hosted TinyPNG alternative?
- Yes. SnapOtter runs image compression locally, so the practical limit is your deployment hardware rather than a third-party image service quota.
- Which formats can SnapOtter compress?
- PNG, JPEG, WebP, and AVIF, with conversion between formats. SnapOtter also reads many input formats, including camera RAW formats.
More comparisons
Run it on your own server
200+ tools across image, video, audio, PDF, and files. Open source, free forever, and your files never leave your network.
Deploying this across a team?
Audit trails, per-tool permissions, SSO, and air-gapped deployment for regulated environments. Talk to us about running SnapOtter as shared infrastructure.