Compress PNG Without Losing Quality
Smaller PNGs, transparency intact, processed entirely on your device.
100% in your browser — files never uploaded
How PNG compression works (and why photos stay large)
PNG is a lossless format: it never throws detail away, which is why a photographic PNG stays stubbornly large no matter what you do. This tool shrinks PNGs by intelligently reducing dimensions and re-encoding — perfect for oversized screenshots and graphics. If your PNG is actually a photo, converting it to JPG or WebP will cut the size by 5–10× with no visible difference.
Compress PNG without losing transparency
Transparency (the alpha channel) survives compression here untouched — logos, icons and cut-out graphics keep their clear backgrounds. That is the key difference from converting to JPG, which has no alpha channel and flattens transparent areas onto white. Compress when you need PNG features; convert when you only need a smaller picture.
Shrinking Retina screenshots the smart way
Screenshots from high-DPI displays are captured at 2× or 3× their visual size, which doubles or triples the file weight for no benefit in documents and tickets. Halving a Retina screenshot's dimensions typically cuts the file by 60–75% while looking identical at normal zoom. Drop one in and compare the preview — the saving is usually dramatic.
Why PNG Files Are So Large — and What Actually Shrinks Them
PNG is a lossless format: every pixel is stored exactly, which is why a photographic PNG stays stubbornly heavy no matter what quality setting you try — there is no quality setting to lower. That leaves two honest levers. The first is reducing dimensions: a Retina screenshot captured at 2× or 3× its visual size carries four to nine times the pixels it needs, and halving its dimensions typically cuts the file 60–75% while looking identical at normal zoom. The second is changing format entirely: if your PNG is actually a photograph, converting it to JPG or WebP shrinks it 5–10× with no visible difference. This tool handles the first lever in your browser, with nothing uploaded; our PNG to JPG converter handles the second.
Compress PNG While Keeping Transparency Intact
The alpha channel — the transparency in logos, icons and cut-out graphics — survives compression here completely untouched, because the output stays PNG. That is the decisive difference from converting to JPG, which has no alpha channel and flattens every transparent region onto solid white. The rule: compress when you need PNG's features (transparency, lossless sharp edges), convert when you only need a smaller picture. Screenshots full of small text also belong in the compress-not-convert camp — JPEG encoding smears crisp letterforms into faint halos, while a dimension-reduced PNG keeps text readable down to surprisingly small sizes.
Shrinking Screenshots for Docs, Tickets and Wikis
Screenshots are the most common oversized PNGs: high-DPI displays capture them at double or triple resolution, and pasting a 4 MB screenshot into a support ticket, bug report or wiki page bloats the document and slows every reader. The efficient workflow is drag the screenshot in, let the preview show the size reduction at half dimensions, and download — the result is usually a quarter of the original weight with zero legibility loss. Everything runs client-side, which matters for screenshots specifically: they routinely contain account details, internal dashboards and private conversations, exactly the content that should never transit a stranger's compression server.
Frequently asked questions
Will my PNG keep its transparent background?
Yes. Compression preserves the alpha channel completely. Only converting to JPG removes transparency.
Why is my PNG photo still big after compressing?
PNG is lossless, so photographic detail cannot be discarded. Convert photos to JPG or WebP instead — that is where the big savings are.
Does this reduce image quality?
Re-encoding at the same dimensions is lossless. Choosing a smaller size reduces resolution — the preview shows the result before you download.
Are my files private?
Completely. Everything runs in your browser; no PNG is ever uploaded.
PNG ka size kam kaise kare?
Drop the PNG in and pick a smaller size — the tool reduces dimensions and re-encodes while keeping the alpha channel intact, so transparency survives.
Screenshot ka size kaise kam kare?
Retina screenshots are captured at 2× or 3× their visual size. Halving the dimensions here typically cuts the file 60–75% with no legibility loss at normal zoom.
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Data verified: 2026-07-03 · All processing happens in your browser — no files are ever uploaded.