Much smaller photos
A photo saved as PNG is often 80–90% smaller as a JPG, which is what email limits and upload forms are waiting for.
Save PNG and WebP as JPG, at a fraction of the size
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Image tools · runs in your browser
Turn PNG and WebP files into JPG. If a file has transparent areas you choose the colour that fills them — a JPG can't be see-through — and the choice only appears when it matters. Nothing leaves your browser.
Smaller files and wider compatibility, with control over what happens to transparency.
A photo saved as PNG is often 80–90% smaller as a JPG, which is what email limits and upload forms are waiting for.
JPG has no transparent pixels, so they need a colour. White is the default; black or any colour you pick is one click away, previewed on each card.
A WebP that a site refuses can go in the same batch and comes out as a standard JPG at quality 90.
Flat graphics and logos can grow as JPG. When that happens the result says larger, in plain type, so you can keep the PNG instead.
Convert up to 30 files in one run and download the JPGs together.
The conversion happens in this tab, so a screenshot full of account details never leaves your computer.
| The PNG is | As JPG | Advice |
|---|---|---|
| A photo saved as PNG | 80–90% smaller | Convert — this is what JPG is for |
| A screenshot with text | Similar size, slightly fuzzy edges | Keep PNG unless a site demands JPG |
| A logo or flat graphic | Often larger | Keep PNG, or compress the PNG instead |
| A cutout with transparency | Transparency replaced by a colour | Only convert if the destination cannot take PNG |
Two things this page does that a quick converter skips: it asks what should fill see-through areas, and it tells you when a JPG came out bigger. Both follow from how the format was designed.
A JPG cannot have see-through areas, so something has to fill them. That is why the tool asks you for a colour instead of quietly picking one, and only asks when a file actually has see-through areas.
“PNG is also the fallback for any image needing transparency, as JPEG has no alpha channel.”JPG was designed for photos, not for logos and flat blocks of colour. That is why a logo can come out bigger as a JPG, and why the result screen says so in plain type rather than hiding it.
“All modes are used for full color and grayscale continuous-tone images; they do not work well with bitonal or palette-color images.”Six jobs where a PNG is the wrong file, the rule that says so, and what to do about it. Every rule links to the platform's own help page.
Google Play takes screenshots and the 1,024 × 500 px feature graphic only as JPEG, or as a PNG with no transparency. Mockups exported from a design tool often keep a transparent layer, which puts them outside that rule.
How it helps
Drop in the exports and set Behind transparent areas to White, Black or Custom; each card previews the fill. Pixel dimensions don't change, so a 1,024 × 500 graphic comes back at exactly 1,024 × 500.
Kindle Direct Publishing accepts eBook cover files only as TIFF or JPEG, under 50 MB, and says a cover that doesn't meet its specifications may not be approved. Covers designed in a web tool are often exported as PNG.
How it helps
Convert the PNG and the cover is saved as a JPG at quality 90 with its pixel size unchanged. If the design has transparent edges, pick a Custom colour that matches the cover background before converting.
Adobe Stock lists JPEG as the format for photo submissions, with a resolution between 4 and 100 megapixels and a maximum file size of 45 MB. Edits exported from an editor as PNG have to be converted before they can go in.
How it helps
Convert up to 30 edits in one run. The width and height stay the same, so the resolution Adobe checks doesn't change, and the result screen shows the total size before and after. Set colour options in your editor before you export.
USCIS online filing only accepts evidence as PDF, JPG or JPEG, with TIF allowed for some forms, and no file larger than 12 MB. Screenshots of messages, bank apps and booking confirmations are usually PNG files.
How it helps
Add the screenshots, up to 30 at a time, and download the JPGs together in one ZIP. Screenshots have no transparency, so there is nothing to choose. The conversion runs in your browser, so your documents are never uploaded.
Elsevier recommends that only EPS, PDF, TIFF or JPEG are used for electronic artwork, and accepts JPEG for photographs and micrographs. Microscope and camera images exported from analysis software as PNG fall outside that list.
How it helps
Convert the photographic figures to JPG at quality 90 with their pixel size intact. Leave charts and line art out: text and hard edges go slightly soft as JPG, and Elsevier recommends TIFF for line art.
Outlook limits a message to 20 MB for internet accounts such as Outlook.com or Gmail, and business Exchange accounts default to 10 MB, attachments included. A few renders saved as PNG can use that up on their own.
How it helps
A photographic render saved as PNG is often 80–90% smaller as a JPG, so a set that wouldn't send can fit in one message. The result screen totals both sizes, and says so if flat drawings come out bigger.
A JPG can't be see-through, so every transparent pixel needs a colour. White is the default; black or any colour you pick are the alternatives. The choice only appears when a file actually has transparency.
For a photo, dramatically — often 80 to 90% smaller. For a flat graphic, a logo or a screenshot it can come out larger, and the result screen says so rather than hiding it.
Yes. The tool takes PNG and WebP and writes JPG.
Quality 90 — high enough that a photo shows no visible difference, small enough to be worth converting.
No. The conversion runs in your browser.