Free · private · no sign-up
Image tools that never upload your photos
Compress, resize, convert, clean up and create, right here in your browser. Drop a batch of photos and PixWrench does the work on your own device.
- Files stay on your device
- Batches and zip downloads
- No watermarks, no account
Drop images to get started
We’ll look at what the files are and suggest the right tool. Nothing is uploaded.
PixWrench’s code runs on your device. We don’t receive your files, file names or their contents.
Runs in your browser. Open-source codecs compiled to WebAssembly do the work.
Nothing to upload. No server ever receives your files or file names.
Check it yourself. Load a tool, go offline, and it keeps working. How it works
Everything you need to fix an image
Pick a tool, or drop files above and we’ll suggest one. Each tool remembers its settings on this device, never your files.
Shrink & reshape
Make photos smaller in bytes or pixels, crop them and fix their rotation.
Convert
Change format without uploading: iPhone HEIC, WebP, AVIF, PNG, JPG, SVG and PDF.
Privacy & edit
See and remove hidden metadata, blur faces or plates, and add a watermark.
Create
QR codes that never expire and a complete favicon set for your website.
A small workbench for images, with nothing to upload
Most online image tools send your photos to a server, process them there and hand back a copy. That works, but it means a stranger’s computer briefly holds your holiday pictures, your passport scan or the screenshot with your bank balance in it. PixWrench takes a different route: the page you load contains the image engine itself, so the pixels never leave your device.
That engine is built from well-known open-source codecs. JPEGs are written with MozJPEG, WebP with libwebp, AVIF with libavif and PNGs are squeezed with OxiPNG, all compiled to WebAssembly so they run at close to native speed in a background thread. iPhone HEIC photos are decoded by your browser where it can, and by the libheif library where it can’t. The licenses page lists every component.
Doing the work locally also removes the usual limits. There’s no cap on how many files you add, no queue and no “upgrade to download the zip”. Your device sets the pace: a laptop handles big batches quickly, a phone takes a little longer, and very large images get an offer to scale them down before they’re opened.
We care about the details people actually notice. Photos come out the right way up because the hidden rotation flag is applied to the pixels. Color profiles are kept so wide-gamut phone photos don’t look washed out. Location data is removed by default when you compress or convert, and the metadata viewer shows you exactly what a photo was carrying. QR codes are static, so they never expire.
Real compression
Batch compress with a before/after slider, or ask for “under 200 KB” and let PixWrench find the best quality that fits.
iPhone photos, sorted
HEIC to JPG in bulk, with the location removed and the date taken kept.
Privacy built in
See and strip GPS, serial numbers and other hidden details, without re-compressing.
Codes that keep working
QR codes for links, Wi-Fi and contacts, checked with a real decoder before you print.
Learn the why, not just the how
Short, sourced guides to the questions people get stuck on: which format to use, how big to print, what a photo’s metadata gives away.
- How to compress images for websites, email and upload formsQuality settings, target sizes and resizing first, with worked numbers.
- HEIC explained: what it is and how to open iPhone photos anywhereWhy your iPhone saves .HEIC files, and the easy ways to open or convert them.
- JPG vs PNG vs WebP vs AVIF: which image format should you use?Lossy or lossless, transparency, browser support and real file sizes compared.
- Image sizes for social media, checked against each platform’s help pagesPixel sizes and aspect ratios for posts, profiles, covers and link previews.
- What your photos reveal, and how to remove location data before sharingGPS, serial numbers and timestamps hidden in EXIF, and how to strip them.
- Do QR codes expire? Static and dynamic codes explainedWhy some codes stop working, how to make one that won’t, and how big to print it.
- Favicon sizes explained: the files your website actually needsICO vs PNG vs SVG, Apple touch icons, manifest icons and Google’s rules.
- DPI vs pixels: how big can you print a photo?Pixels, PPI and DPI untangled, with a print-size table you can use.
About PixWrench
PixWrench is run by Infinity Square Labs Ltd, a small UK company that builds free, privacy-first web tools.
Is PixWrench really free?
Yes. Every tool is free with no account, no watermark and no daily allowance. The site is paid for by a small number of clearly labeled ads, which are kept away from the tools themselves.
Are my photos uploaded anywhere?
No. The tools run inside your browser tab, using WebAssembly versions of open-source image codecs. Your files are read from your device, processed in memory and saved back to your device. The how it works page shows how to check this yourself.
Is there a limit on file size or how many files I can add?
There’s no file-count limit. The practical limit is your device’s memory: PixWrench processes images up to 50 megapixels on a computer and 24 megapixels on a phone, and offers to scale down anything larger before opening it.
Does it work on iPhone and Android?
Yes, in current versions of Safari, Chrome, Firefox and Edge. Big batches and AVIF encoding are slower on phones, and HEIC photos open without any download in Safari because it can read them natively.
Who runs PixWrench?
PixWrench is run by Infinity Square Labs Ltd, a small company registered in England and Wales that builds free, privacy-first web tools. Read more about us.