Best Compressor.io Alternative
An unlimited, free alternative to compressor.io. Compress JPG, PNG, WebP and AVIF in your browser with quality presets for every format.
A compressor.io alternative that lifts the upload cap. Process unlimited files locally with quality presets for every format, with no server and no queue.
How it works
The short answer
The compressor tools on this site are a true compressor.io alternative with no upload cap. You can compress JPG, PNG, WebP and AVIF locally in your browser, choose quality presets or exact target sizes, and process unlimited files without an account or queue.
How compressor.io works
Compressor.io is a browser based compression service that re-encodes your image on its servers to shrink the file. It supports several formats and quality settings, but it uploads your image and imposes file size limits on the free tier.
What this site lifts
Instead of uploading, this site runs the codecs in your browser. There is no per file size cap up to 50 MB, no image count limit, and no waiting on a queue. The compression techniques are the same modern codecs, so the output is comparable.
Formats covered
The compressors here cover JPG, PNG, WebP and AVIF, matching the formats compressor.io handles. Each has quality presets, and PNG gets a lossless or reduced palette option. Target size modes hit an exact byte limit for portals and email.
Privacy difference
Compressor.io sends your image to a server to process it. Here everything runs locally on your device, so no file ever leaves your browser. That makes it the private option for personal photos, client work and anything confidential.
When to switch
Switch if you regularly compress larger files, need unlimited batches, or want to keep images private. The local tools also add exact target size compression, which compressor.io does not offer in the same way. For quick one off small files either works.
A practical rule
Use the format matching compressor for quality mode, or a target size page when a form forces an exact limit. Both run locally with no quota. For web graphics, pair compression with conversion to WebP for the smallest result.
Frequently asked questions
What limits does compressor.io have?
Compressor.io caps files around 10MB on its free tier. This tool accepts up to 50MB per file with unlimited batch counts.
Is browser compression as good as a server?
For quality targeted compression, yes. Modern codecs running in the browser produce results on par with server-side tools.
Can I compress several formats at once?
Yes, choose the matching compressor for JPG, PNG, WebP or AVIF, then batch process as many files as you like in one pass.
Are my images uploaded anywhere?
No, compression runs locally in your browser. Nothing is uploaded, stored or seen by a server, which keeps private images safe.
How do I hit an exact file size?
Use a target size compressor such as compress to 500KB. It searches for the highest quality that fits under the limit automatically.