Image Converter — PNG to JPG, WebP to PNG, Batch & No Upload
Free image converter: PNG to JPG, WebP to PNG, JPG to WebP in your browser. Batch queue, quality slider, before/after compare — no upload, no watermark. 🔒 Local conversion · 0 upload⚡ Instant on drop🚫 No watermark∞ No limits
Key features
Format conversion plus quality control often halves the file size.
Drag the divider to compare quality pixel by pixel — no guesswork.
Processed locally by your browser. Images are never uploaded.
Transparent areas are auto-filled white when targeting JPG; any fill color is supported.
Drop dozens of files, download one by one or all at once.
Convert in three steps
Drop images
Drag, click or paste screenshots — one image or a batch of dozens.
Pick format & quality
Switch JPG / PNG / WebP instantly; fine-tune quality and fill color for lossy formats.
Compare & download
Check quality with the divider, then save one by one or all at once.
When you need it
JPG, PNG or WebP — which one
| Format | Best for | Transparency | Size | Compatibility |
|---|---|---|---|---|
| JPG | Photos, complex colors | Not supported | Small | Everywhere |
| PNG | Screenshots, icons, text and line art | Supported | Larger | Everywhere |
| WebP | Web images, general purpose | Supported | Smallest | Modern browsers |
Quick lookup: what your image should become
| Your image | Recommended | Why |
|---|---|---|
| Photos, ID shots (huge PNG) | JPG 90 | Lossy but visually lossless, much smaller |
| Blog / page images | WebP 80 | 25–35% smaller than JPG, supported by modern browsers |
| Screenshots, icons, transparency needed | PNG | Lossless with alpha, crisp text edges |
| WebP that will not open | JPG or PNG | Legacy software and messengers accept it |
| Forms that only accept JPG | JPG 90 | The most compatible format there is |
All conversion directions
Directions this tool covers — popular directions have their own page
FAQ
Are my images uploaded to a server?
FAQ Upload A
Is it free? Any size or count limits?
FAQ Free A
Which formats are supported? What about iPhone HEIC?
FAQ Formats A
What do the two sides of the compare view show?
FAQ Compare A
Will transparent areas turn black after converting to JPG?
FAQ Transparent A
What quality setting should I use?
FAQ Quality A
How many images can one batch handle?
FAQ Batch A
Does local conversion sacrifice quality?
FAQ Quality Parity A
Why did my file get bigger after conversion?
FAQ Bigger A
Related tools
An image converter that runs entirely in your browser: convert images between JPG, PNG and WebP — drag files in, pick a target format, compare quality with the before/after slider, then download one by one or all at once. It is a free online tool — your images never leave your device, so there is no file-size cap, no queue, no watermark and no sign-up.
PNG to JPG: smaller photos, white background fill
PNG to JPG is the most common conversion: photos saved as PNG carry unnecessary weight, and JPG cuts them to a fraction at quality 90 with no visible loss. The catch is transparency — JPG has no alpha channel, so naive converters render transparent areas as ugly black blocks. This tool fills the background with white by default (black, light grey or any custom color) so logos and graphics with transparent edges come out clean for forms, CVs and messaging apps.
WebP to PNG / WebP to JPG: open what you downloaded
You saved an image from the web and now nothing opens it — old Office versions, some photo viewers and quite a few upload forms still reject WebP. Converting WebP to PNG keeps the transparency channel intact; WebP to JPG produces the most compatible file for Word, WhatsApp or a government form. All modern browsers decode WebP natively, which is exactly why this tool can convert it locally without sending your file anywhere.
JPG to WebP / PNG to WebP: the webmaster's cut
Serving photos as WebP typically saves 25–35% over the same image as JPG, and it keeps transparency where JPG cannot. If you run a blog or maintain a site, converting your existing JPG to WebP and PNG to WebP backstock is the cheapest speed win available: same quality slider, visibly smaller files, supported by every browser released in the past several years. Running the image converter over a whole media library takes minutes and costs nothing.
How the quality slider works
JPG and WebP are lossy formats: the slider (40–100) maps directly to the encoder quality level.
- 90 — visually indistinguishable from the original; the safe default for photos and documents.
- 80 — the web-standard sweet spot; halve the file size for pages and galleries.
- 70 and below — thumbnails and previews where small size matters more than fidelity.
PNG is lossless, so the slider (and the background fill) only applies when the target format is JPG or WebP.
Batch conversion, done in a queue
Drop dozens of files at once into the batch image converter. Each image becomes a row in the conversion queue showing the format change, the before/after size and the savings percentage; click any row to load it into the compare stage and inspect it pixel by pixel. Download files individually or all at once — since decoding and encoding happen on your machine, the batch speed is limited only by your CPU, not by an upload pipe.
What happens to EXIF metadata
Camera photos carry EXIF metadata: capture time, camera model, sometimes GPS coordinates. This tool re-encodes pixels, so EXIF is stripped from the output — which for most sharing scenarios is a privacy plus: no location leaks when you post a converted photo. If you need to preserve metadata for archival work, keep the original file alongside the converted one.
Companion image tools
Format conversion is one of three image workbenches here: sketch and annotate on the drawing board, then drag the exported PNG into the image converter to compress it; pick colors for your layouts with the color codes reference. All three run locally in your browser.
Supported input: JPG, PNG, WebP, GIF (first frame), BMP, AVIF. Output: JPG, PNG, WebP. HEIC input (iPhone photos) is on the roadmap.