About PicKit
Your Images Never Leave Your Device
Most "free online image tools" work the same way: you pick a file, it gets uploaded to a server you've never heard of, processed there, and sent back. That model is fine for a meme. It's the wrong model for a contract scan, a child's photo, a medical chart, or anything else you wouldn't hand to a stranger on a USB stick.
PicKit flips the model. Every compress, resize, crop, convert, and watermark runs inside your browser — the file you select is read into memory, transformed by the same browser that's displaying the page, and offered back to you as a download. There is no upload endpoint, because there is no server doing the work. Your images stay on your device the whole time.
17 Tools for Everyday Image Tasks
PicKit ships 17 tools, grouped by the job you're trying to get done:
Compress 🗜️
One compressor with target-size presets (50 KB, 100 KB, 200 KB, 1 MB) and quality control — the tool you reach for when an upload form keeps rejecting your file for being too big.
Convert 🔄
Format conversion between JPG, PNG, and WebP; HEIC to JPG and HEIC to PNG for iPhone photos that won't open elsewhere; image-to-PDF for documents; and image-to-Base64 for embedding in CSS or JSON.
Edit ✂️
Crop, resize, and rotate; add a watermark; blur or pixelate faces and sensitive areas; apply filters; split an image into a grid; pick a dominant color; and strip EXIF metadata before sharing.
Batch 📦
A batch processor that runs the same operation across a folder of images and hands back a single ZIP — because resizing 30 photos one at a time isn't a task, it's a punishment.
WebAssembly: Desktop Power in the Browser
Browser-based image processing used to mean "slow and limited." PicKit leans on the modern web
platform to close the gap with desktop apps. HEIC decoding — the hardest part, since Apple's
format has no native browser support — runs on a WebAssembly build of libheif, so iPhone photos
decode without ever touching a server. Resize and convert operations use
OffscreenCanvas and
createImageBitmap, piped through Web
Workers so the heavy lifting happens off the main thread and the UI never freezes mid-edit.
The practical upshot: a 12-megapixel photo compresses in well under a second, a batch of thirty images processes while you're still lining up the next task, and the tab stays responsive the whole time. That's the bar a desktop app used to clear and a web page didn't.
Batch Processing for Productivity
Resizing one image is a click. Resizing forty images for a product catalog — same dimensions, same format, same compression — is a different problem, and doing it by hand is how people start hating their job. PicKit's batch processor takes a folder, applies one operation to every file, and bundles the results into a single ZIP download. Social-media presets (Instagram, Twitter, Facebook, WeChat, Xiaohongshu) are built in, so "everything at 1080×1080" is one run, not forty.
Free Forever, No Watermark
No sign-up wall, no trial timer, no "upgrade to remove watermark" overlay burned into your photos. Every tool — including batch and HEIC conversion — is free, with no usage cap. If you need to process a hundred images, process a hundred images. The contact for feedback is hello@pickit.app, and the full privacy details live on the privacy policy page.