Format questions
The converter handles PNG, JPG, and WebP in every direction — six possible conversions, all supported. These three cover virtually all web, sharing, and document needs; legacy formats like BMP or TIFF would need desktop software first.
Transparency survives conversion to PNG and WebP, both of which support alpha channels. It does not survive conversion to JPG — transparent areas become a solid color. If your image has transparency you care about, never target JPG.
Converting between the same formats repeatedly is harmless when a lossless format is involved, but lossy-to-lossy chains degrade: JPG to WebP to JPG accumulates damage with every hop. Plan conversions to minimize lossy steps — ideally a single hop, from the best source, straight to the final format. Your future self will thank you for the shorter chain.
Quality questions
Converting to PNG is lossless: pixels are preserved bit-for-bit, and converting back and forth between lossless formats loses nothing. Converting to JPG or WebP is lossy, governed by the quality slider — higher preserves detail, lower shrinks harder.
One-way caution: converting a lossy JPG to PNG does not recover quality. The discarded detail is gone; PNG simply stores the remaining pixels exactly, in a larger file. Always convert from the best-quality source available.
Limits and practical questions
Up to 20 images per batch, converted automatically on selection, each with its own card showing before and after sizes. There are no accounts, no watermarks, and no daily caps — run as many batches as you need.
Downloads keep original file names with the new extension, and you can take files individually or as one ZIP. Very large source images take longer — there is more data to re-encode — but they process fine.
Privacy questions
Conversion happens entirely in your browser: files are read from your disk, transformed in memory, and offered as downloads. Nothing is uploaded to any server at any point.
There is no account and no history — closing the tab ends the session completely. For personal photos or confidential graphics, this local-only design means there is nothing to trust and nothing to verify beyond the page itself.
After converting
Replace the old files wherever they are actually used — websites, documents, slide decks. Converted images sitting in a downloads folder change nothing until they take the old files' place.
Keep the originals when the conversion was lossy. Future format shifts are painless when you convert fresh from the masters instead of from already-converted copies.
Frequently asked questions
Which formats can I convert between?
PNG, JPG, and WebP in any direction — all six combinations. These cover essentially all web and sharing needs.
Will I lose quality converting?
To PNG: no, it is lossless. To JPG or WebP: it depends on the quality slider — 75–85 preserves full visual quality for most images.
Does transparency survive conversion?
To PNG or WebP: yes. To JPG: no — transparent areas become solid. Never target JPG for images with transparency you need.
Are my images uploaded anywhere?
No. Conversion runs entirely in your browser; your files never leave your device and nothing is stored.