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 an image to 100KB

Get any image under 100KB. Target-size mode searches for the highest quality that fits your limit, right in your browser. Great for uploads with strict size caps.

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

Who asks for 100KB, anyway?

Government portals, visa and exam applications, job boards and ID-photo uploads are full of hard 100KB caps — usually written years ago and enforced to the byte. Guessing quality settings until a file squeaks under the limit is miserable; this tool automates the guessing.

How target-size mode hits the number

Instead of a fixed quality, the compressor runs a search: encode, measure, adjust, repeat — converging on the highest quality that still lands under 100KB. You get the best-looking image the limit allows, not just any file that fits. If the source is physically too large to fit at acceptable quality, resizing it down first (there is a resize tool one click away) gives the search more room.

Sensitive uploads stay local

Files headed for these portals are passports, certificates and application photos — exactly what should not pass through a random compression server. Everything here runs in your browser; the document never leaves your machine.

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.