A free TinyPNG alternative with no 5 MB cap and no upload
TinyPNG compresses well, but every image goes to its servers first, with a 5 MB cap on the free plan. Here is what changes when the image never leaves your device.
What TinyPNG does well
TinyPNG, run by Tinify, is one of the best-known image compressors on the web. It shrinks PNG, JPEG, WebP and AVIF files and converts between formats, including to AVIF and JPEG XL. It also offers a developer API, a WordPress plugin, a Figma plugin and an image CDN. It is a legitimate, widely used service.
Why people look for an alternative
As of November 2026, per tinypng.com/pricing/web, the free web plan compresses up to 20 images per session at up to 5 MB each and converts 3 per session. Web Pro, at $3.25 a month billed annually, removes the count, raises the cap to 75 MB per image and lists ad-free use. A high-resolution photo straight from a camera can pass 5 MB.
TinyPNG is upload-based: its terms say Tinify may temporarily store the content you submit, and that submitted content is stored for a maximum of 48 hours.
What changes with a browser-based tool
Stayput's image tools run inside the browser tab, so your images are not uploaded and there is no per-session count or 5 MB cap. PNG compressor rewrites a PNG with a palette of up to 256 colours and keeps transparency, and the file usually drops by 60 to 80 percent. Lossless keeps every pixel, and a folder of exports comes back as one zip. If a file would not get smaller, you get the original back.
Compress image shrinks JPG, PNG and WebP photos to a quality or to a size such as 100 KB, in batches. Convert image turns them into WebP, JPG or PNG, and JPG to AVIF writes AVIF. Resize, crop and remove EXIF data cover the rest of getting an image ready for the web. They are free, need no account and show no ads, and the limit is your device's memory (phones hold less).
Where TinyPNG still has the edge
TinyPNG's API, WordPress and Figma plugins and image CDN compress images automatically as part of a site or design workflow, which a browser tab can't do. It also writes JPEG XL, which Stayput doesn't yet. For compressing a batch of PNGs, JPGs or WebPs by hand without sending them anywhere, a browser tool covers the common case. A palette PNG can show slight banding on photos and smooth gradients, so convert those to JPG or WebP instead.
Questions
What is TinyPNG's free limit?
As of November 2026, its pricing page lists up to 20 compressions per session, 5 MB per image and 3 conversions per session on the free web plan.
How long does TinyPNG keep my images?
Its terms say submitted content is stored for a maximum of 48 hours, as of November 2026.
Can I compress PNG images without uploading them?
Yes. Stayput's PNG compressor reduces the colours and writes the PNG in your browser tab, and your browser's network panel shows the images are not uploaded.
Is there a TinyPNG alternative with no file size limit?
Stayput has no per-image cap or per-session count. The limit is how much your device can hold in memory, so very large images may need a computer rather than a phone.