Does my image get uploaded?

No. All compression happens locally in your browser using the Canvas API. Your files never leave your device and are never sent to a server.

Does compression reduce quality?

Lossy formats (JPG, WebP, AVIF) trade a little quality for much smaller files, and the quality slider lets you find the right balance. PNG is lossless, so it stays pixel-perfect.

Which formats are supported?

You can compress JPG, PNG and WebP. You can also convert a PNG photo to WebP during compression for much smaller files.

Can I compress to a specific file size?

Yes. Switch to “Target size” mode and PixelVault searches for the highest quality that fits under your chosen KB limit.

Can I compress multiple images at once?

Yes. Drop in as many images as you like and download them individually or together as a single ZIP file.

Compress images for email

Make photos small enough to email without hitting attachment limits. Target-size mode compresses each image to a compact size in your browser — no uploads.

Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.

The attachment-limit math

Gmail and Outlook cap messages around 20–25 MB, and many corporate mail servers reject far less. Phone photos run 3–5 MB each, so a simple “here are the photos” email dies after five or six attachments — and even when it sends, it clogs the recipient’s inbox. Compressed to a couple hundred kilobytes each, fifty photos fit where six did.

Right-size, don’t ruin

Email photos are viewed on screens, not printed as posters, so an aggressive target costs nothing visible. The default 200KB target keeps photos crisp on any laptop or phone display; batch mode applies it to every attachment in one run, and you can download them together as a ZIP.

No detour through a server

It would be ironic to route private photos through an unknown server just to email them privately. Compression happens in your browser — the photos go from your folder to your draft without a third party in between.

Frequently asked questions

Does my image get uploaded?: No. All compression happens locally in your browser using the Canvas API. Your files never leave your device and are never sent to a server.
Does compression reduce quality?: Lossy formats (JPG, WebP, AVIF) trade a little quality for much smaller files, and the quality slider lets you find the right balance. PNG is lossless, so it stays pixel-perfect.
Which formats are supported?: You can compress JPG, PNG and WebP. You can also convert a PNG photo to WebP during compression for much smaller files.
Can I compress to a specific file size?: Yes. Switch to “Target size” mode and PixelVault searches for the highest quality that fits under your chosen KB limit.
Can I compress multiple images at once?: Yes. Drop in as many images as you like and download them individually or together as a single ZIP file.

All image tools

Image Compressor — Shrink JPG, PNG & WebP without the quality loss you can see.
Image Converter — Convert between JPG, PNG, WebP, AVIF and BMP — HEIC input supported.
Image to PDF Converter — Turn images into a PDF — or PDF pages into images.
Image Resizer — Resize by pixels or percentage with ready-made presets.
Image Cropper — Crop to any ratio or shape — square, circle or rounded — with borders.
Background Remover — AI background removal & blur — right on your device.
Image to Text (OCR) — Extract text from images and screenshots — locally.
Image Rotator — Rotate and flip many images at once by any angle.
Image Editor — Crop, rotate, flip, annotate, add text and blur — in one editor.
Image Adjustments — Contrast, brightness, black & white, invert and filters.
Remove Image Metadata — View and strip EXIF, GPS and location data.
Privacy Blur — Blur, pixelate or black out sensitive info in seconds.
Image Watermark — Add text, logo or tiled repeating watermarks — single or batch.
Color & Image Analyzer — Dominant colors, palettes, histogram and contrast.
Favicon Generator — Turn any image into a favicon.ico + app icon set.
Photo Collage Maker — Arrange photos into layouts — drag to rearrange, scroll to reframe.
Passport Photo Maker — Crop a photo to passport & ID sizes — with a printable sheet.