Convert Images Without Uploading — Free JPG/PNG/WebP Converter
100% local processing — your images never leave your browser.
Upload Image
Drag and drop an image here, or click to select
Supports JPG, PNG, WebP, BMP, GIF
Result
Upload an image to see the before/after format, size comparison and preview.
Features
100% Local
Your images never leave your browser. No server, no uploads, no size limits.
Instant Conversion
Pick a target format and instantly see the converted preview and file size.
Multiple Formats
Reads JPG, PNG, WebP, BMP and GIF, and converts to JPG, PNG or WebP.
Why convert image formats?
Each image format has its strengths: JPG is great for photos with small, widely compatible files; PNG supports transparency and lossless quality, ideal for icons and cut-outs; WebP gives smaller files at similar quality. When a platform only accepts a certain format, you need transparency, or you want a smaller file, converting formats is the answer.
100% local processing, private by design
Unlike many online converters that upload your images to a server, this tool runs entirely in your browser using the Canvas API. Your images are never uploaded, stored or sent to any third party — ideal for IDs, contracts and any photo containing personal information.
Common conversion tips
PNG to JPG dramatically shrinks files but drops transparency (filled white); JPG to PNG gives you a lossless format but usually a larger file; WebP to JPG fixes compatibility with older software or platforms that can't open WebP. If your goal is smaller files and faster pages, converting to WebP is usually the best choice.
Popular conversions
Frequently asked questions
Which format conversions are supported?
Input: JPG, PNG, WebP, BMP, GIF, SVG and HEIC. Output: JPG, PNG or WebP. GIF, BMP and TIFF cannot be exported because browser Canvas doesn't encode them; that's a limitation of the web platform, not the tool.
Does converting PNG to JPG lose transparency?
Yes — JPG doesn't support transparency, so any transparent pixels are filled with white during conversion. If you need to keep transparency, convert to WebP instead, which supports it and produces smaller files than PNG.
What happens to HEIC files?
HEIC is decoded in the browser using a WebAssembly decoder, then re-encoded to your chosen output format. HEIC files come out of iPhones by default; converting to JPG or WebP makes them shareable with almost any device or platform.
Is my image uploaded anywhere?
No. All decoding, re-encoding and download happen inside your browser. This matters especially for HEIC, which many online converters upload to their servers just to run the decode step.
Are there any file size limits?
There is no fixed limit in the tool. Because processing runs locally, the practical limit is your device's memory — very large files convert more comfortably on a laptop than on a phone.
Can I convert to modern formats like AVIF?
Not currently — AVIF encoding requires a browser Canvas API that only some browsers support and only recently. WebP is the practical modern-format choice: nearly as small as AVIF, universally supported by browsers built after 2020, and produced by the same one-click flow.
All Tools
10+ privacy-first image tools — all run 100% in your browser
Watermark
Add text or logo watermarks to IDs & docs
Batch Watermark
Watermark many images at once
PDF Watermark
Stamp watermarks onto PDF files
PDF Password
Password-protect a PDF with AES-256
Mosaic & Blur
Mosaic, blur or box out sensitive parts
EXIF Cleaner
Strip GPS location & camera metadata
Compress
Shrink file size while keeping quality
Resize
Resize image width & height
AI Remove BG
Remove image backgrounds with AI
Social Crop
Crop to sizes for every social platform