Convert images to WebP
Turn JPG, PNG or HEIC images into compact WebP for faster websites and smaller files at the same quality. Convert one or a whole batch, all locally.
Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.
Everything → WebP, in one pass
Migrating a site to WebP usually means images scattered across formats: JPG photos, PNG graphics, the odd BMP, GIF or even HEIC. This converter takes them all in one mixed batch and outputs uniform WebP — transparency preserved where the source had it, quality set once for the lot.
Why standardizing on WebP pays
One format simplifies your pipeline and your `<img>` tags, and WebP is the safe modern choice: 25–35% smaller than JPG for photos, far smaller than PNG for graphics, supported by every browser since 2020. The conversion runs locally in your browser — no upload queue, no per-file limits, ZIP download at the end.
Frequently asked questions
- Which formats are supported?
- You can convert to and from JPG, PNG, WebP, AVIF and BMP, and convert from HEIC/HEIF (iPhone photos). Browsers cannot create HEIC files, so HEIC is input-only. Output formats your browser cannot encode are detected and disabled automatically.
- Can I convert HEIC to JPG?
- Yes. Drop in a HEIC photo from an iPhone and choose JPG (or PNG/WebP). The HEIC file is decoded locally in your browser with a bundled decoder — it is never uploaded anywhere.
- Is transparency preserved?
- Yes, when converting to a format that supports an alpha channel (PNG, WebP, AVIF). For formats without transparency (JPG, BMP), you can pick a background color for transparent areas.
- Is my image uploaded?
- No. Conversion runs entirely in your browser — your images never touch a server.
- What is AVIF and should I use it?
- AVIF produces the smallest high-quality files. Encoding support varies by browser, so PixelVault enables it only when your browser can create AVIF files.
- Can I convert many images at once?
- Yes. Batch-convert a whole folder of images and export them together as a ZIP.