Best Free Image Compressor in 2026 — Tested and Compared
Image compression is one of the most searched tasks on the web. Every major option — TinyPNG, Squoosh, iLoveIMG, Canva — works. The question most comparisons skip: which ones upload your files to a server, and does that matter for your use case?
Quick comparison
| Tool | Uploads files? | Free limits | Output quality |
|---|---|---|---|
| RightImageKit | No — local | No limits | Excellent |
| TinyPNG | Yes | 20 images/month free | Excellent |
| Squoosh (Google) | No — local | No limits | Excellent |
| iLoveIMG | Yes | File size limits | Good |
| Canva | Yes | Account required | Good |
RightImageKit — Best for privacy and tool range
RightImageKit compresses images entirely in the browser using the Canvas API. No upload happens at any point. The before/after preview shows the exact file size saving in real time. You also get 18 other tools in the same app — resize, convert, remove background, crop, filters and more.
Best for: Sensitive images, regular use, anyone who wants more than just compression.
TinyPNG — Best compression quality
TinyPNG uses smart lossy compression specifically optimised for PNG and JPG. The output quality is outstanding — often smaller files than other tools at the same visual quality. It uploads files to their servers and is limited to 20 images/month on the free tier.
Best for: Maximum compression quality on non-sensitive images.
Squoosh (Google) — Best alternative for local processing
Squoosh is Google's open-source image compression tool. Like RightImageKit it processes locally — nothing is uploaded. The interface is more technical (side-by-side comparison, codec selection) which is powerful for developers but less intuitive for general use. It only does compression — no resize, convert, background removal or other tools.
Best for: Developers who want fine control over compression settings.
The upload question — why it matters
For a product photo or stock image, uploading to TinyPNG or iLoveIMG is completely fine. For a payslip you're compressing before emailing, a medical photo, a scanned document, a photo of your ID — you might not want a copy sitting on a third-party server.
Both RightImageKit and Squoosh solve this. The difference: RightImageKit gives you 19 tools in one place; Squoosh only compresses.
Which free image compressor has no limit?
RightImageKit and Squoosh both have no compression limits on the free tier. TinyPNG limits to 20 images/month free. iLoveIMG has file size limits.
Is TinyPNG safe to use?
TinyPNG is a legitimate, well-established service. Files are deleted from their servers after processing. For non-sensitive images it is perfectly safe. For sensitive documents, use a local tool like RightImageKit.