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tinyimgcompress — Frequently Asked Questions
Everything about formats, quality, privacy and how Tiny Image Compress works.
General
Frequently asked questions
Is tinyimgcompress.com free?
Yes — free, no watermark, no signup.
How tiny can images get?
Photos often drop 50–80%, depending on the image and chosen format.
Are my uploads private?
Files are processed in isolation and deleted shortly after download.
Compress Image
Frequently asked questions
How much smaller will my image get?
Photos typically shrink 50–80%. The exact amount depends on the image and format.
Will compression ruin quality?
No — the smart quality setting removes data you can't see, keeping the picture sharp at normal sizes.
Which formats are supported?
JPG, PNG and WebP, individually or in batches.
Is it free?
Yes — free, no watermark, no signup.
Compress PNG
Frequently asked questions
Is PNG compression lossless?
Yes. Every pixel and the transparency are preserved exactly. The optimiser only removes redundant data and bulky metadata, never any visible detail.
My photo is still big as a PNG — why?
PNG can't compress photos efficiently because of their continuous colour. Convert photos to JPG or WebP and they'll get far smaller.
Does optimising keep my logo's transparency?
Yes. The alpha channel comes through untouched, so transparent and semi-transparent areas look identical after optimisation.
Why didn't running it a second time help?
The first pass already reaches the lossless minimum for that image. To shrink further you'll need to resize it or convert it to WebP.
Image to WebP
Frequently asked questions
Is WebP really smaller than JPG?
Yes, typically 25-35% smaller at the same visible quality, and smaller than PNG too. That's why it's the go-to format for fast-loading websites.
Does WebP keep transparency?
Yes. WebP supports a full alpha channel, so transparency from a PNG converts across cleanly without any loss.
Can I convert both photos and graphics?
Both. Photos get a solid size cut versus JPG, while complex graphics with transparency often shrink dramatically compared with PNG.
Will converting improve a low-quality image?
No. Conversion can't add back detail an earlier save removed. It re-packs the existing picture into a smaller file at the same quality.
Resize Image
Frequently asked questions
What's the difference between resizing and compressing?
Resizing reduces the pixel dimensions of an image; compression reduces file size at the same dimensions. Doing both gives you the smallest possible file.
Will resizing distort my image?
No. Width and height scale by the same factor, so the aspect ratio is preserved and nothing gets stretched or squashed.
Why is the limit 1600 pixels?
1600 pixels is plenty for crisp display in most web layouts, while trimming the excess pixels that oversized originals waste on file size.
Should I resize or compress first?
Resize first. That way the compressor only works on the pixels you'll actually show, instead of optimising data you're about to discard.