Convert JPG to WEBP
Convert JPG to WEBP for smaller, faster-loading images. Runs in your browser — no uploads, no signup, unlimited use.
- 100% browser-based — no uploads, ever
- Unlimited batch — process hundreds at once
- Free forever — no signup, no watermarks
- Works on iPhone, Android, Mac, Windows, Linux
Convert in four steps
Drop images, paste from clipboard, or use your camera on mobile.
Adjust quality or dimensions — or accept the smart defaults.
The tool runs on your device with no server round-trip.
One-click download, or a single ZIP for batches.
Common questions
Are my images uploaded to a server?
No. Every conversion in this tool runs entirely in your browser using the Canvas and File APIs. Your images never leave your device, which makes the tool faster, private by default, and safe for confidential or personal photos.
Is there a file size or count limit?
There is no hard limit imposed by us — the tool is bound only by your device's memory. Most modern phones and laptops comfortably process dozens of high-resolution photos at once.
Will I lose quality?
JPG is a lossy format, but at the default 92% quality setting most people cannot tell the difference from the original. Increase the quality slider to 100% for near-lossless output, or lower it for smaller files.
Does it work on iPhone and Android?
Yes. The interface is mobile-first, supports the camera and clipboard, and produces standard files that save directly to your device's downloads or photo library.
Everything worth knowing about the JPG to WEBP
WebP consistently produces images that are 25–35% smaller than the equivalent JPG at the same visible quality — a real, easily-measured win. If you run a website, publish product photos, or send image-heavy newsletters, converting a library of JPGs to WebP is one of the fastest wins available for Core Web Vitals and mobile-data-plan-friendly delivery.
This converter turns any JPG into WebP entirely in your browser. Drop one file or a thousand, download individually or as a ZIP, and set the quality slider once — the same setting applies to the whole batch.
How much smaller, really?
For photographic content, expect a 30% file-size reduction at the same perceived quality. For images with a lot of flat regions (screenshots, illustrations), the improvement can hit 50% or more. On a landing page with a dozen images totaling 4 MB, that's a hero-image-sized reduction — often the difference between a slow LCP and a passing one.
The gains stack with sensible sizing. Serving a 1600×1000 WebP where a 800×500 would do is still wasteful; the format is a multiplier, not a substitute for correct dimensions.
Browser support in 2026
Every browser that matters has supported WebP since 2020: Chrome, Edge, Firefox, Safari (16+), Opera, and every mobile browser derived from them. iOS 14+ and Android 4.2+ display WebP natively. The historical concern — 'my visitors won't see the image' — is a rounding error in 2026, and the standard `<picture>` fallback pattern covers even that.
Quality settings that matter
WebP's quality slider is similar to JPG's but a little more forgiving. A WebP at quality 0.80 typically looks like a JPG at 0.90 with a smaller file. For most web imagery, 0.80 is a strong default. For hero images where sharpness matters, 0.90 gives you virtually no visible loss at a size still meaningfully smaller than the JPG source.
Below 0.65, WebP's characteristic softness in fine detail becomes visible — text screenshots and product photos with fine textures start to look painted.
When to keep JPG
If your target audience uses very old software (Windows 7 Photo Viewer, Office 2013, obscure e-readers), JPG is safer. If you're supplying images to a client system that has an explicit JPG-only pipeline (many print workflows, some ad networks, most legacy CMSes), converting to WebP will trip validation.
For web publishing, image libraries, and general storage, WebP is the better choice today.
- — Migrating a whole site? Convert once, then update your image tags to use <picture> with a JPG fallback for maximum coverage.
- — Setting quality once for a batch is fine — WebP's curve is stable across content types.
- — For photography portfolios, quality 0.90 is a sweet spot: essentially invisible loss, meaningful file-size win.