Image compression

The open-source, self-hosted alternative to TinyPNG

TinyPNG is a focused online image compressor. Vistalyth Tools is the self-hosted alternative for teams that want compression, conversion, resize, metadata, and other image work to run locally.

Vistalyth Tools vs TinyPNG

 Vistalyth ToolsTinyPNG
Deployment modelSelf-hosted on your serverHosted web service
File processing locationYour infrastructureFiles are uploaded to a vendor-hosted service for processing
Cost controlFree AGPLv3; limits are your hardwareFree web use and paid/developer API options
Offline / air-gapped useSupported when deployed inside your networkDesigned for browser-based online use
Beyond image compressionImage, video, audio, PDF, and filesImage compression and Tinify API workflows
Source and auditabilitySource available under AGPLv3Vendor-operated service; source availability is not the product model
AutomationREST API and pipelines in your deploymentBrowser 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. Vistalyth Tools is not affiliated with TinyPNG.

Sources reviewed

One stack, all five file types

TinyPNG is excellent when the job is image compression. Vistalyth Tools 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. Vistalyth Tools runs image compression locally, so the practical limit is your deployment hardware rather than a third-party image service quota.
Which formats can Vistalyth Tools compress?
PNG, JPEG, WebP, and AVIF, with conversion between formats. Vistalyth Tools also reads many input formats, including camera RAW formats.

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 Vistalyth Tools as shared infrastructure.