Tools
Fileraz
Tools
Fileraz
Try jpg to png, compress image, pdf…
Image tool
Simple 3-step flow
Drop up to 30 JPG files, tune once, and download PNG files plus one ZIP — decoded and re-encoded in this tab.
01
Drop up to 30 JPG files from this device. Each shows as a preview card with a live size estimate. Drag to reorder.
Batch of 30 · drag to reorder
02
Hit Convert. Your browser decodes the JPG and re-encodes it as lossless PNG on a canvas locally.
No slider — lossless
03
Save each PNG individually or grab one ZIP for the batch. The sources on disk stay put.
Encoded locally · 0 bytes uploaded
What the workspace does
These match the converter — the pair rule, the quality rule, and local-only processing.
No transparency appears out of thin air — JPEG pixels arrive fully opaque.
JPG → PNG
PNG keeps every pixel exactly, so there is no quality slider — size is whatever lossless takes.
No slider needed
Privacy architecture
Cloud converters upload the image to flip its format remotely. This one decodes and re-encodes on a canvas here — the file never leaves the device.
Legacy cloud tools
Uploads the image to a remote queue.
Fileraz
0 bytes leave this machine. Canvas encode runs in this tab.
Legacy cloud tools
Accounts and quotas on free tiers.
Fileraz
Never — there is no public sign-up at all.
Legacy cloud tools
You only get back what the server kept.
Fileraz
Source stays on disk. Output is a fresh encode.
Honest output
Format conversion changes the container and compression — it never invents pixels, transparency, or detail.
Answers
Quality, transparency, and whether JPG files are uploaded.
No. It stops any further quality loss, which matters if you plan to re-edit and re-save the file, but it cannot restore detail the JPEG compression already removed.
PNG compresses losslessly, so it has to keep every pixel value exactly. For photographic content that typically means a file several times the size of the JPEG original.
We do not enforce one. The practical ceiling is your own device — the image is decoded into memory, so a very large file is bounded by available RAM rather than by a rule we set.
Yes — up to 30 JPGs per batch, each with its own estimate and download plus one ZIP. Remember the PNGs run larger than the JPGs; that is the lossless trade, not a bug.
Constraints
Up to 30 images per batch — each with its own download, plus ZIP.
PNG output is lossless; JPG/WebP use the quality slider.
EXIF orientation is applied when your browser supports it.
Ready to convert JPG to PNG in this tab?
JPG in · PNG out · up to 30 files · 0 bytes uploaded