Free
Squoosh
Open SourceCompression & Optimization · Image & Media
Google's browser image compressor with advanced codecs (WebP, AVIF).
compressionwebpavifimages
Discover the 17 best open-source tools for image & media. Community-driven, transparent source code with permissive licenses. Curated, compared, and updated for developers.
| Tool | Pricing | Platforms | Top Strength | Link |
|---|---|---|---|---|
| Squoosh | free | web | Google's browser image compressor with advanced codecs (WebP, AVIF). | Details → |
| ImageOptim | free | desktop | Free Mac app to optimize images without quality loss. | Details → |
| SVGOMG | free | web | Browser GUI for SVGO, optimizing SVG files with previews. | Details → |
| SVGO | free | cli | Node.js tool and library for optimizing SVG vector files. | Details → |
| ShareX | free | desktop | Powerful open-source screenshot and screen recording tool for Windows. | Details → |
| Flameshot | free | desktop | Cross-platform screenshot tool with annotation built in. | Details → |
| ExifTool | free | cli | Read, write and edit image, audio and video metadata. | Details → |
| Picsum Photos | free | web | Easy-to-use placeholder images from Unsplash via URL parameters. | Details → |
| Openverse | free | web | Search engine for openly-licensed media across the web. | Details → |
| FFmpeg | free | cli | The universal audio/video converter and processor behind everything. | Details → |
Showing top 10 of 17. Browse the full grid below.
Compression & Optimization · Image & Media
Google's browser image compressor with advanced codecs (WebP, AVIF).
Compression & Optimization · Image & Media
Free Mac app to optimize images without quality loss.
Compression & Optimization · Image & Media
Browser GUI for SVGO, optimizing SVG files with previews.
Compression & Optimization · Image & Media
Node.js tool and library for optimizing SVG vector files.
Screenshots · Image & Media
Powerful open-source screenshot and screen recording tool for Windows.
Screenshots · Image & Media
Cross-platform screenshot tool with annotation built in.
Screenshots · Image & Media
Read, write and edit image, audio and video metadata.
Stock & Placeholders · Image & Media
Easy-to-use placeholder images from Unsplash via URL parameters.
Stock & Placeholders · Image & Media
Search engine for openly-licensed media across the web.
Conversion · Image & Media
The universal audio/video converter and processor behind everything.
Conversion · Image & Media
Classic CLI suite for creating, editing and converting images.
Compression & Optimization · Image & Media
Open-source video transcoder with presets for every device.
Screenshots · Image & Media
Record terminal sessions as lightweight, copy-pasteable text casts — embeddable and shareable.
Screenshots · Image & Media
Beautiful open-source screen recorder for macOS — captures, trims and exports GIFs/MP4s with plugins.
Compression & Optimization · Image & Media
Free, open-source AI image upscaler for desktop — batch-enlarge images locally with Real-ESRGAN models.
Audio & Video · Image & Media
The free, open-source standard for screen recording and live streaming — scenes, filters and plugins.
Audio & Video · Image & Media
The classic open-source audio editor — multi-track editing, noise removal and effects for podcasts and voiceovers.