SnapDiff

Capture pages, compare A/B screenshots, annotate, and save locally.

Free screenshot comparison, pixel Diff, annotations, accessibility checks, and full-quality exports. No account required. SnapDiff makes visual reviews easier: capture a webpage, compare before and after, mark the changes that matter, and export clear evidence for your team. Every feature is free for personal and professional use. No account, subscription, paid tier, or activation key. Workflows are unlimited, subject to capture and export safety limits. CAPTURE WHAT MATTERS Capture the visible page, a selected area or element, or a full page. Start from the extension toolbar and keep your work in a local library. SEE WHAT CHANGED Compare two screenshots side by side and use pixel Diff to highlight changes. Import reference images for A/B reviews, or compare several captures visually in a Multi group. MARK THE ISSUE Add arrows, shapes, text, freehand marks, and rulers. Annotate individual images or across a comparison. Edits save automatically. SHARE CLEAR EVIDENCE Copy an annotated PNG or download full-quality PNG, JPEG, WebP, and image-based A4 PDF files. Clean exports are included. Add an optional name watermark or timestamp when it helps your workflow. CHECK MORE THAN PIXELS Run optional local axe accessibility checks alongside your capture. Review saved findings and export a JSON report. Automated checks assist a review; they do not certify accessibility. KEEP YOUR SCREENSHOTS LOCAL Screenshots, annotations, and accessibility reports stay in your browser. Structured usage and diagnostic reporting uses a random installation ID and never includes those contents or captured page URLs or titles. See the privacy policy for details. Built for designers, developers, QA reviewers, and anyone who needs to explain a visual change clearly. Learn more: https://snapdiff.co Documentation: https://docs.snapdiff.co Privacy policy: https://snapdiff.co/privacy