Compressor.io is a long-running, simple image compressor, and for a single small file it works fine. People start looking for an alternative when they hit the free plan's file-size and batch limits, with larger jobs pushed to a paid plan.
This page covers what to look for in an alternative, where TinyPNG Now fits, and where Compressor.io is still the better pick. For a full feature table, see our TinyPNG Now vs Compressor.io comparison.
Key Takeaway: If your pain is file-size or batch limits, or you do not want to upload client images to a server, switch to an in-browser compressor. If you need GIF or SVG, keep Compressor.io for those.
Why People Look for an Alternative
- File-size cap: the free plan caps file size, which large camera exports can exceed.
- Batch cap: A per-batch image cap means large jobs take many rounds.
- Server upload: files are sent to a remote server, which matters for confidential or client work.
- Narrow toolset: compression only, so resizing or converting means another site.
What to Look For in a Replacement
Check four things before switching: whether the tool compresses in your browser or on a server, whether it has hard size or batch caps, which formats it supports (WebP matters if you care about PageSpeed), and whether you can resize or convert in the same place.
Quality matters too. Good compressors give a large size cut with no visible change. Our guide to compressing images without losing quality explains the settings.
Where TinyPNG Now Fits
TinyPNG Now runs compression in your browser using WebAssembly, so images are not uploaded. It handles JPG, PNG and WebP with no file-size or batch cap, lets you download a batch as one ZIP, and includes a resizer, converters and other tools in the same place.
Where Compressor.io still wins: it supports GIF and SVG on the free plan, which TinyPNG Now does not. If those are your main formats, keep it as your second tool.
Quick Comparison
| Need | Better pick |
|---|---|
| Large files | TinyPNG Now |
| Batches of 50+ images | TinyPNG Now |
| Confidential images (no upload) | TinyPNG Now |
| WebP output | TinyPNG Now |
| GIF or SVG compression | Compressor.io |
Comparing more tools? See the best free image compressors of 2026, or the match-ups against iLoveIMG and Squoosh.
About this comparison: Details about other products (limits, pricing, features) come from their public information at the time of writing and change often, so please check each provider's own website for current terms. TinyPNG Now is an independent tool, is not affiliated with the products compared, and this comparison reflects our own view.
Frequently Asked Questions
What is the best free alternative to Compressor.io?
For JPG, PNG and WebP, TinyPNG Now is a strong free option because it has no file-size or batch cap and compresses in your browser. For GIF or SVG, Compressor.io itself is still a sensible choice.
Does TinyPNG Now have a file size limit?
No fixed cap is set by the tool. It runs in your browser, so very large files are limited only by your device's memory.
Is an in-browser compressor as good as a server-based one?
For JPG, PNG and WebP, yes in practice. Modern browser codecs reach comparable size reductions, and your files never leave your device.
Can I compress GIF or SVG with TinyPNG Now?
Not currently. TinyPNG Now covers JPG, PNG and WebP. For SVG you can convert to PNG with our converter, and for GIFs a dedicated GIF tool is a better fit.
Why did Compressor.io stop my upload?
The free plan limits file size and batch size; check Compressor.io for the current values. Files or batches above that need a paid plan or a different tool.
Summary: Switch when file or batch limits, or server upload, get in your way. Use the free TinyPNG Now compressor for JPG, PNG and WebP, and keep Compressor.io for GIF and SVG.