Is this JPG to PNG converter really free?

Yes. Up to 5 files at a time, no signup, no catch. The free tier adds a small watermark to image output — Pro ($9.99/mo or $49/yr) removes it, raises the file size limit to 500 MB, and unlocks unlimited batch conversion.

Are my files uploaded to a server?

No — and you can verify it yourself. Open DevTools → Network tab, then convert a file. You'll see zero upload requests. Everything runs right in your browser. We never see your files.

How long does conversion take?

Usually 1–3 seconds for a typical file. The very first conversion on a fresh page load may take 5–20 seconds while the converter engine loads — after that it's instant. Your CPU does all the work locally.

What is the file size limit?

Free: up to 10 MB per file, 5 files per batch. Pro: up to 500 MB per file, unlimited batch. If you're working with large videos or RAW photos, Pro is built for that.

Can I batch convert multiple JPG files at once?

Yes — drop multiple files at once (or Ctrl/Cmd+click to select them) and they all convert in parallel. Free accounts handle up to 5 files per batch; Pro has no limit.

Will the image quality change after conversion?

It depends on the formats involved. Converting to a lossless format like PNG preserves every pixel exactly. Converting to a lossy format like JPEG or WebP applies compression — we default to 85% quality, which looks identical to the original for almost all images. You won't notice a difference unless you zoom in pixel-by-pixel.

Do you support batch image conversion?

Yes — drop multiple images at once and they all convert in parallel. Free accounts handle up to 5 at a time; Pro is unlimited. Download everything as a single ZIP when you're done.

Will my JPG look better after converting to PNG?

No — converting to PNG won't improve quality or remove existing JPEG artifacts. The compression damage is permanent. The PNG will look identical to the JPG; it just won't lose any more quality from future saves.

How much larger will the PNG be compared to the JPG?

Typically 3–10× larger. A 300 KB JPG photo often becomes 2–4 MB as PNG. This is expected. If you need a smaller file, keep the JPEG or convert to WebP instead.

How private is this converter?

Completely private — by design, not policy. There is no upload endpoint. Files are processed right inside your browser tab and disappear the moment you close it. We collect only anonymous page-view counts; your file content is never seen or stored.

JPG to PNG Converter — Free, Lossless, No Upload

How to convert JPG to PNG online

1
Drop your JPG file
Drag and drop your Joint Photographic Experts Group file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs Joint Photographic Experts Group → Portable Network Graphics entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your PNG
Your Portable Network Graphics file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.

JPG vs PNG: format overview

JPG

Joint Photographic Experts Group

Joint Photographic Experts Group · 1992

Compression: lossy
Color depth: 8-bit
Transparency: No

✓ Universal compatibility — supported everywhere
✓ Excellent compression for photos
✗ Lossy — each save degrades quality

PNG

Portable Network Graphics

PNG Development Group (Thomas Boutell) · 1996

Compression: lossless
Color depth: 16-bit
Transparency: Yes

✓ Lossless compression — pixel-perfect quality
✓ Full alpha transparency (8-bit alpha channel)

JPG magic bytes: FF D8 FF

PNG magic bytes: 89 50 4E 47 0D 0A 1A 0A

Why convert JPG to PNG?

JPEG is a lossy format — it achieves small file sizes by permanently discarding image information. PNG is lossless — every pixel is stored exactly, with no quality reduction. Converting JPEG to PNG won't recover detail that JPEG already discarded, but it does stop any further degradation.

The main reasons to convert JPG to PNG: you need transparency support (JPEG doesn't have it), you're going to edit the image through multiple save cycles and don't want quality to degrade with each one, or you need to use the image on a platform that specifically requires PNG.

JPEG artifacts become more visible every time you re-save a file in JPEG format. If you're doing any multi-step editing — compositing, adding text overlays, creating mockups, retouching — switching to PNG after your first edit stops that compression cycle from compounding.

A converted JPG-to-PNG will be noticeably larger in file size than the original JPEG. That's expected and fine if you're editing. It's a problem if you're trying to reduce file size — in that case, stay with JPEG or try WebP.

Common reasons to convert JPG to PNG:

›Adding a transparent background to an image (requires PNG; JPEG doesn't support alpha channels)
›Editing an image multiple times without stacking JPEG compression artifacts
›Uploading to a platform, template, or app that specifically requires PNG format
›Preserving text overlays or sharp-edge graphics that JPEG compression blurs

Quality & file size: JPG to PNG

Typical file sizes: JPG 2–5 MB → PNG 8–25 MB.

Converting from lossy JPG to lossless PNG will not recover detail the JPG codec already discarded — but the output will not degrade any further. This is useful when you need a lossless format for editing or compatibility without additional compression artifacts.

Color depth: JPG supports 8-bit, PNG supports 16-bit.

Transparency: JPG does not support transparency. PNG preserves transparency.

Frequently asked questions

Privacy: how FormatDrop handles your files

Your JPG files are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.