How to Redact Screenshots on Mac and Windows
A practical guide to covering private details before you share a screenshot.
A useful screenshot can also reveal an email address, phone number, account balance or private message. Screenshot redaction covers those details while keeping the rest of the image useful.
SnapVeil is a browser-based screenshot redaction tool. You can manually cover content or use local OCR to find supported text patterns. Images are processed in your browser rather than uploaded for editing.
1. Choose your screenshot
Open the SnapVeil editor and choose a PNG, JPG or WebP image. On a computer, you can also drag in a file or paste an image with Cmd/Ctrl + V. On mobile, use Choose images / Take photo; the available options depend on your browser and device.
2. Find and cover sensitive information
Select the detection rules you need and run Auto Redact. OCR can help locate email addresses, phone-number patterns and other supported patterns, but it can miss text or match ordinary numbers. Add temporary keywords for text you want to find.
Inspect the screenshot and draw manual masks over anything missed, including names, faces, addresses, private messages and API keys. Automatic detection is a starting point, not a complete privacy check.
3. Use solid masks for sensitive text
Choose Solid Black for information that must be unreadable. Pixelation can leave clues and may be recoverable. Ensure each mask covers the full detail, including its edges.
4. Export and check the downloaded image
Export the image, then open the downloaded file and inspect it before sharing. Check every visible area, including tabs, sidebars and notifications. Keep the original private.
What is included for free?
Free editing includes local OCR, manual redaction and multiple-image workflows. Free exports include a SnapVeil watermark and are limited to a 1920px longest edge. Optional Pro provides exports up to 3840px, watermark removal and one saved privacy profile. Smaller originals are not upscaled.
Start with the fictional sample in the free editor if you want to learn the workflow before opening your own image.