Plenty of tools — sprite pipelines, document systems, older upload forms — only accept PNG. Converting a JPG to PNG wraps your image in a lossless container that every application can read, without any further quality loss from this point on.
The conversion runs entirely in your browser, preconfigured for PNG output. One honest note up front: converting to PNG cannot restore detail the original JPG compression already discarded — it prevents future loss, not past loss.
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This is Convert Image Format preconfigured for this task — open the full tool for every option.
Select one or more images.
Choose the target format; consequences (like losing transparency in JPEG) are shown before converting.
Pick a background color if converting transparency to JPEG.
Convert and download individually or as a ZIP.
Every output is re-decoded to confirm it parses as the target format with the expected dimensions; failures are isolated per file.
No — and any tool that claims otherwise is misleading you. PNG stores exactly the pixels the JPG decodes to. It stops further generational loss if you keep editing, but existing JPG artifacts remain.
PNG is lossless, so it can't use the aggressive perceptual compression JPG uses. For photographs a large size increase is normal and expected.
Technical guidance for choosing settings and reviewing the result.
There is no quality percentage that makes every image exactly 1 MB or 100 KB. A reliable target-size workflow measures real encodes, preserves the best result under the limit, and tells you when resizing is necessary.
8 min read · Reviewed August 2026