100% browser-based · nothing ever uploaded
Free Online File Tools —
No Upload, 100% Private
All processing happens in your browser. Your files never leave your device.
Compress & Resize
Convert to / from WebP
JPG → WebP
Shrink JPG as WebP — smaller files, same quality. No uploads, in-browser.
PNG → WebP
Shrink PNG as WebP with transparency kept. In-browser, no uploads.
AVIF → WebP
Convert AVIF to WebP with transparency kept. Local, no upload.
WebP → JPG
Convert WebP images to JPG. Instant, private conversion.
WebP → PNG
Convert WebP to lossless PNG with transparency kept. In-browser.
JPEG XL (.jxl)
JPG → JPEG XL
Re-encode JPG as JPEG XL for smaller files. Browser-based, no uploads.
PNG → JPEG XL
Re-encode PNG as smaller JPEG XL — lossless or quality-based. No uploads.
WebP → JPEG XL
Re-encode WebP as JPEG XL, lossless or quality-based. Browser-based.
AVIF → JPEG XL
Re-encode AVIF as JPEG XL, lossless or quality-based. Fully in-browser.
HEIC → JPEG XL
Convert iPhone HEIC photos to JPEG XL, locally. Lossless or quality mode.
JPEG XL → JPG
Convert .jxl to JPG using WebAssembly. No uploads, works offline.
JPEG XL → PNG
Convert .jxl to lossless PNG. Browser-based, no uploads. Keeps transparency.
JPEG XL → WebP
Convert .jxl to WebP with quality control. Browser-based, no uploads.
AVIF
JPG → AVIF
Shrink JPG as AVIF — the most compact web format. In-browser WASM.
PNG → AVIF
Shrink PNG as AVIF with transparency kept. In-browser WASM.
WebP → AVIF
Re-encode WebP as AVIF — smaller files, transparency kept. In-browser.
JPEG XL → AVIF
Convert JPEG XL to AVIF with a quality slider. Local, via WebAssembly.
AVIF → JPG
Convert AVIF images to JPG. Fast, private, browser-based.
AVIF → PNG
Convert AVIF to lossless PNG with transparency kept. In-browser.
HEIC / iPhone
PDF tools
Merge PDF
Combine multiple PDFs into one. Runs locally.
Split PDF
Extract pages from a PDF into separate files. Runs locally.
Rotate PDF
Rotate PDF pages 90°, 180° or 270°. Local, no upload.
Remove PDF Pages
Delete specific pages from a PDF. Local, no upload.
JPG → PDF
Turn JPG images into PDF. Each image becomes its own page, sized to the image.
JPEG XL → PDF
Turn .jxl images into PDF. Each image becomes its own page, sized to the image.
WebP → PDF
Turn WebP images into PDF. Each image becomes its own page, sized to the image.
HEIC → PDF
Turn iPhone HEIC photos into PDF. Each photo becomes its own page, sized to the image.
AVIF → PDF
Turn AVIF images into PDF. Each image becomes its own page, sized to the image.
PDF → JPG
Turn PDF pages into JPG images. Runs locally in your browser.
PDF → PNG
Render PDF pages to lossless PNG images. In-browser, no upload.
GIF maker
Why choose OnDeviceFiles
Truly Private
Files processed on your device, never uploaded.
Instantly Fast
No upload queues. Limited only by your hardware.
Free & Unlimited
No accounts, no usage limits, no watermarks.