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Image Converter Online — PNG, JPEG, WebP Format Converter

Convert images between PNG, JPEG, and WebP in your browser — no upload, no signup. Adjust quality for JPEG and WebP to balance file size against visual fidelity, preview the result before downloading, and convert multiple images in a row without leaving the page. Because everything happens locally, the tool is safe for screenshots, product mockups, and design comps.

Features

  • Three common formats

    Convert between PNG, JPEG, and WebP — the formats supported on every modern browser.

  • Quality slider

    For JPEG and WebP, tune quality from 1 to 100 and watch the file size update.

  • No upload

    Images are processed locally with Canvas — they never leave your device.

  • Drag-and-drop

    Drop any image onto the page to load it. Paste from clipboard also works.

How to convert image format online

Switch between PNG, JPEG, and WebP without uploading.

  1. Drop your imageDrag an image onto the converter or click to pick a file. PNG, JPEG, GIF, WebP, and BMP inputs are accepted.
  2. Pick the output formatChoose PNG, JPEG, or WebP for the output.
  3. Adjust qualityFor JPEG and WebP, drag the quality slider. PNG is always lossless.
  4. DownloadClick download to save the converted image.

Examples

Convert a screenshot to WebP

Input
screenshot.png  (450 KB)
Output
screenshot.webp (95 KB, quality 80)

Typical 4–6× size reduction with no visible quality loss.

Frequently Asked Questions

Are my images uploaded to a server?
No. The converter uses the browser Canvas API to decode and re-encode images entirely on-device. Nothing is uploaded, logged, or cached on a server.
What is the difference between PNG, JPEG, and WebP?
PNG is lossless — best for screenshots, line art, and images with transparency. JPEG is lossy — best for photographs. WebP is a modern format that supports both lossy and lossless modes and typically produces smaller files than JPEG/PNG.
Will I lose quality converting PNG to JPEG?
Possibly. JPEG is lossy and does not support transparency, so converting a PNG with transparent areas will flatten transparency to a solid color. For screenshots and logos, prefer WebP.
What is the maximum image size?
There is no fixed limit, but very large images (8K+ photos, multi-megabyte PNGs) may slow the browser. The practical limit depends on your device's memory.
Can I convert animated GIFs to WebP?
The Canvas-based pipeline produces a single frame; animated WebP/GIF conversion is on the roadmap. For animated output, use a dedicated tool today.
Does it support SVG?
You can paste an SVG and convert it to a raster format (PNG/JPEG/WebP). The output uses the SVG's natural pixel dimensions.