Guides on how to get the most out of TwinLens — from basic image comparisons to synced video workflows.
The free online image comparer and video comparison tool, all in one place. Side-by-side, slider, and peek views with live demos — plus a one-line iframe to embed any comparison on your own site.
Read guide →Two steps and four ready-to-paste iframe snippets — 4-up image grid, 4-up synced video grid, image slider, and video slider. Drop any of them into your blog, docs, portfolio, or product page.
Read tutorial →A feature-by-feature tour of the whole tool: 2-4 image compare, slider / split / peek / grid views, synced video playback, folder pairing, shareable links, iframe embeds, keyboard shortcuts, PSNR/SSIM image quality metrics, and more.
Read overview →Create shareable comparison links and embed interactive before-and-after comparisons on your website, blog, or documentation — images and videos, no plugin required.
Read guide →Fast, browser-based video comparison — no uploads, no installs. A practical guide for ML engineers, QA teams, and researchers evaluating video quality with synchronized playback, multiple views, and instant export.
Read guide →Compare large image datasets — like HR/LR pairs — in seconds. Drag two folders in, auto-match by filename, navigate pairs with arrow keys, open a gallery view, and inspect per-image metrics side by side. No code required.
Read tutorial →A complete walkthrough of TwinLens from first open to finished comparison. Covers drag-and-drop loading, slider and split view, synced zoom and pan, video comparison, labeling, snapshot export, and generating a shareable link — all in your browser with no install required.
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