Image Converter
Convert between PNG, JPG, WebP, AVIF, BMP, ICO favicons, and PDF — multiple files at once, with quality and resize controls. Conversion happens locally in your browser.
- 100% free
- No upload — runs in your browser
- No signup
- No watermark
How to convert an image
Change image formats in the browser without uploading anything.
Add images
Drag in one or many images, paste with ⌘V / Ctrl+V, or click to pick files.
Choose the output format
Pick PNG for lossless graphics, JPG for photos, WebP or AVIF for the best size, ICO for favicons, or PDF for documents.
Set quality and size
For JPG/WebP, set the quality slider. Optionally cap the longest side to resize on the fly.
Convert and download
Click convert, then download files individually or all at once.
What this tool does
- Convert to PNG, JPG, WebP, AVIF, BMP, ICO, or PDF
- Reads PNG, JPG, WebP, GIF, BMP, SVG, AVIF, and ICO input
- ICO export builds a multi-size favicon (16, 32, 48, 256 px) in one file
- Image to PDF — each image becomes a single-page PDF, generated locally
- Batch mode — drop a whole set of images at once
- Quality slider for JPG, WebP, AVIF, and PDF output
- Optional max-dimension resize while converting
- Local processing: files are never uploaded anywhere
Tired of converting screenshots manually?
Pizazoo organizes, OCRs, and lets you export your Mac screenshots in the format you need — automatically and offline.
Frequently asked questions
Why convert PNG screenshots to WebP or JPG?
macOS screenshots are large PNGs. WebP at quality 80–90 is usually 5–10× smaller with no visible difference — better for email, docs, and the web.
Does transparency survive conversion?
PNG, WebP, AVIF, and ICO keep transparency. JPG, BMP, and PDF do not — transparent areas are filled with white in those formats.
How does the ICO favicon export work?
ICO output packs 16, 32, 48, and 256 pixel versions of your image into a single .ico file — exactly what browsers expect for a favicon. Square images work best.
Can I turn an image into a PDF?
Yes — choose PDF and each image becomes a one-page PDF sized to the image. The PDF is generated entirely in your browser, nothing is uploaded.
Why is AVIF missing from the format list?
AVIF export depends on your browser. Chromium-based browsers can encode AVIF; if yours cannot, the option is hidden automatically. AVIF input decodes in all modern browsers.
Is there a file size or count limit?
No artificial limits. Because conversion runs on your machine, very large batches are only limited by your browser’s memory.
Can I convert HEIC photos?
Safari can read HEIC natively, so HEIC input works there. Chrome and Firefox cannot decode HEIC — export to JPG from Photos first on those browsers.