Screenshot Secret Scanner
Find API keys, tokens, passwords, emails, card numbers and IBANs in screenshots before you post them. Free, private and instant: it runs entirely in your browser.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
How to use Screenshot Leak Check
- 1
Open or drop an image.
- 2
Use the controls to get the result you want.
- 3
Download the result. Nothing is uploaded at any point.
Why use Aback Images for screenshot leak check
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
Instant results
Everything runs locally in a background thread, so there is no upload queue and no waiting on a server.
Batch friendly
Process many images at once and download them individually or as a ZIP.
Every format
Works with JPG, PNG, WebP, AVIF, HEIC, GIF, TIFF, SVG, RAW and more, identified by content rather than file name.
Related tools
Strip EXIF, GPS, XMP, IPTC and comments losslessly. Pixels are never re-encoded for JPG, PNG and WebP.
Delete only the GPS coordinates and keep camera details, dates and colour profile intact.
See every EXIF, GPS, XMP, IPTC and ICC field, with a map link and the hidden embedded thumbnail.
Edit capture date, author, copyright, description, camera and GPS location in JPG files.
One report: location, device serials, dates, hidden thumbnails and readable secrets found by OCR.
Black out, pixelate or blur regions. Redacted pixels are truly replaced, not covered.
Shrink JPG, PNG, WebP, AVIF and GIF files with MozJPEG, OxiPNG and modern codecs, with a live before/after preview.
Resize to exact pixels, a percentage or a longest side, with Lanczos3 and Magic Kernel resampling. Batch ready.
Guides
How to check a photo before you share it
A checklist for hidden metadata, embedded thumbnails, secrets visible in screenshots and details in the picture itself, with tools that run on your device.
2 min read
How to redact a screenshot properly
Why highlighter strokes, markup layers and light blur can leak information, and how true redaction replaces the pixels so hidden text is gone for good.
2 min read
Frequently asked questions
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.