Private
Your files never touch a server. Everything runs locally — no uploads, no account, no telemetry. The whole point of a desktop app.
// Watch it compress
Drag the handle. Optimo did this locally — same photo, 93% smaller, no quality you'd notice losing.


JPG → WebP · quality auto-tuned to a target size
// The app
Target a file size; Optimo binary-searches the quality. PNG · JPG · WebP · AVIF · TIFF. EXIF/GPS stripped by default.
Bundled FFmpeg. H.264–AV1, CRF / CBR / VBR, two-pass, NVENC / VideoToolbox / VAAPI.
Point at a folder. 20,000 files stream in, a 60 fps grid, one settings profile across the whole set.
Concurrent jobs with live ETA. Pause, resume, reorder. Reveal finished files in one click.
// Why Optimo
Your files never touch a server. Everything runs locally — no uploads, no account, no telemetry. The whole point of a desktop app.
Native Sharp + multi-core FFmpeg. 20,000 files stream in and process without freezing the UI.
AVIF/AV1, target file size, hardware acceleration — pro controls usually behind paid suites.
// How it works
// Optimo vs web tools
| Optimo | Web compressors | |
|---|---|---|
| Files uploaded | None | All of them |
| Batch size | 20,000+ | ~20–100 |
| Video support | Full FFmpeg | Rare / paywalled |
| File-size cap | None | 5–100 MB |
| Cost | Free | Freemium |
| EXIF/GPS strip | On by default | Inconsistent |
// Specs
// FAQ
Yes. Free to download and use, for personal and commercial work. No trial, no account, no paid tier today. Donations are not currently accepted; if that changes, the form lives in the footer.
No. Every byte stays on your machine. Optimo has no servers, no sign-in, and makes no network calls except an opt-in update check that you can disable in Settings.
The installer isn’t yet code-signed. macOS will say “Optimo is
damaged” — right-click → Open → Open, or run xattr -d com.apple.quarantine /Applications/Optimo.app. Windows SmartScreen will say “Windows
protected your PC” — click More info → Run anyway. Linux AppImage:
chmod +x Optimo-*.AppImage. Code-signing is on the roadmap.
Images: PNG, JPG, WebP, AVIF, TIFF, GIF, BMP, ICO, SVG. Videos: MP4, WebM, MKV, MOV, AVI, GIF. Codecs: H.264, H.265, VP8, VP9, AV1 (video); AAC, MP3, Opus, Vorbis, FLAC (audio). Hardware acceleration on H.264/H.265 via NVENC, VideoToolbox, or VAAPI when available.
Windows 10+ (x64), macOS 11+ (Apple Silicon or Intel), or a modern desktop Linux (AppImage or .deb, x86_64). ~150 MB on disk after install. FFmpeg is bundled — nothing extra to install.