Scalir
The facts below are what the maker publishes about Scalir, checked and dated. Our editors have not written about it yet.
Plans and prices
From Scalir's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Scalir | Free | No paid tier · hosted app has a small soft per-session limit · self-hosted and desktop builds are unlimited |
The facts
Each one read from Scalir's own pages, with the date it was checked.
What it does
- Analytics
- The public website uses self-hosted Umami analytics described as cookieless and collecting no personal data; the desktop app and self-hosted copies collect no analytics.checked 11 Oct 2026
- Batch processing
- Yeschecked 20 Sep 2026
- Bulk processing
- It can process a folder in parallel across CPU cores and download the batch as a ZIP or save it to a folder.checked 11 Oct 2026
- Compression modes
- bothchecked 20 Sep 2026
- Desktop availability
- Windows installers are listed for Windows 10/11 and Linux downloads are listed as AppImage, .deb, and .rpm; the site says there is no separate macOS desktop build yet.checked 11 Oct 2026
- Hosted limit
- The hosted app has a small soft per-session limit, while self-hosted and desktop builds are unlimited.checked 11 Oct 2026
- Image resizing
- Yeschecked 20 Sep 2026
- Intended audience
- The maker says they built it for their own client work, including optimizing images before uploading them to WordPress sites.checked 11 Oct 2026
- License
- Scalir is open source under the MIT license.checked 11 Oct 2026
- Metadata controls
- Yeschecked 20 Sep 2026
- Offline use
- Scalir can be installed as a PWA and works offline after first load; native desktop builds are offered for Windows and Linux.checked 11 Oct 2026
- Presets
- It includes built-in presets and lets users save custom presets and remember settings between visits.checked 11 Oct 2026
- Privacy
- Image processing happens locally, and EXIF/GPS metadata is stripped on re-encode while orientation is preserved.checked 11 Oct 2026
- Resizing
- It supports resizing by exact width, exact height, percentage, or longest-side cap, preserves aspect ratio, and does not upscale images.checked 11 Oct 2026
- Self-hosting
- Scalir can be run with Docker behind a firewall with no per-image limits and no data leaving the user's network.checked 11 Oct 2026
- Support
- The maker invites bug reports through the GitHub repository or by email at [email protected].checked 11 Oct 2026
- Supported formats
- JPG/JPEG,PNG,WebP,AVIF,HEIC/HEIF,GIF,TIFF,BMPchecked 20 Sep 2026
- Supported inputs
- It accepts JPG/JPEG, PNG, WebP, AVIF, HEIC/HEIF, GIF, TIFF, and BMP images.checked 11 Oct 2026
- Supported outputs
- It exports JPEG, PNG, WebP, or AVIF, with automatic or user-selected format.checked 11 Oct 2026
- What it does
- Scalir compresses, resizes, and converts images in bulk in the browser, processing files on the user's device.checked 11 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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