# Compresso — Complete Documentation

> Browser-based image, PDF, video, audio, document, and archive compressor — your files never leave your browser, with no account required.

## About
Compresso is a browser-based file compression tool. Your files never leave your browser. There is no hosted upload workflow.

## Supported Formats
- **Images** — PNG, JPG/JPEG, WebP, HEIC, GIF, BMP, TIFF
- **Documents** — PDF, DOCX, PPTX
- **Media** — video, audio, GIF, SVG, HEIC
- **Archives** — ZIP and 7z creation/compression tools

## Key Features
- Client-side compression where files never leave your browser
- HEIC support (Apple's format)
- Adjustable quality controls
- Batch processing
- Before/after comparison
- No signup, completely free
- Target-size compression for limits like 100KB, 200KB, 500KB, and 1MB
- Competitor alternative pages for compression tools such as TinyPNG, Squoosh, iLoveIMG, CompressJPEG, and ShortPixel

## Privacy
Your files never leave your browser during compression.

## Compresso Alternatives
Last reviewed: June 2026. These pages compare public product pages, pricing, API/plugin surfaces, supported formats, privacy model, signup requirements, watermark behavior, and target-size workflows. Competitor features and pricing can change.

### TinyPNG Alternative
- URL: https://compresso.io/alternatives/tinypng
- Best for: people who want a TinyPNG alternative for private one-off PNG, JPG, WebP, HEIC, or GIF compression without setting up an API, plugin, or account workflow.
- Key difference: TinyPNG is strong for API/plugin-oriented optimization; Compresso is stronger for browser-based private compression and target-size workflows.
- Competitor may be better when: you need TinyPNG API automation, WordPress/plugin workflows, or existing team billing/integrations.

### Squoosh Alternative
- URL: https://compresso.io/alternatives/squoosh
- Best for: people who want a Squoosh alternative for quick bulk compression, target-size workflows, and everyday file formats beyond manual codec testing.
- Key difference: Squoosh is strong for hands-on codec tuning and side-by-side previews; Compresso is stronger for practical target-size and bulk compression jobs.
- Competitor may be better when: your main goal is advanced per-codec experimentation.

### iLoveIMG Alternative
- URL: https://compresso.io/alternatives/iloveimg
- Best for: people who want an iLoveIMG alternative focused on private browser-based compression rather than a full hosted image editing suite.
- Key difference: iLoveIMG is a broader hosted image toolkit; Compresso is focused on the privacy promise that your files never leave your browser, plus no signup and target-size workflows.
- Competitor may be better when: you need hosted editing, cloud/account workflows, or broader iLoveIMG/iLovePDF suite features.

### CompressJPEG Alternative
- URL: https://compresso.io/alternatives/compressjpeg
- Best for: people who want a CompressJPEG alternative that supports JPG plus PNG, WebP, HEIC, GIF, SVG, and target-size workflows.
- Key difference: CompressJPEG is simple for JPEG-only compression; Compresso handles more formats and adjacent file compression tasks.
- Competitor may be better when: all you need is a minimal JPEG-only web compressor.

### ShortPixel Alternative
- URL: https://compresso.io/alternatives/shortpixel
- Best for: people who want a ShortPixel alternative for private one-off image compression without account, API, plugin, or WordPress setup.
- Key difference: ShortPixel is strong for WordPress/API/website optimization automation; Compresso is stronger for quick private one-off browser compression.
- Competitor may be better when: you need automated website image optimization, plugins, APIs, or centralized processing at scale.

## Links
- Homepage: https://compresso.io
- Alternatives: https://compresso.io/alternatives
- TinyPNG Alternative: https://compresso.io/alternatives/tinypng
- Squoosh Alternative: https://compresso.io/alternatives/squoosh
- iLoveIMG Alternative: https://compresso.io/alternatives/iloveimg
- CompressJPEG Alternative: https://compresso.io/alternatives/compressjpeg
- ShortPixel Alternative: https://compresso.io/alternatives/shortpixel

## Contact
- Website: https://compresso.io