SnapDiff vs GoFullPage
SnapDiff is completely free for screenshot comparison, annotations, and exports. Choose it to review what changed between page states; GoFullPage focuses on full-page capture. Both keep screenshot history locally.
By SnapDiff / Updated
SnapDiff and GoFullPage at a glance
| Workflow | SnapDiff | GoFullPage |
|---|---|---|
| Core job | Capture UI states, compare A/B images with pixel Diff where compatible, or review 2-5 images in a Multi group. | Capture an entire webpage in one action, then save the result as an image or PDF. Its published features focus on page capture and editing. |
| Free access | Completely free. Unlimited capture, comparisons, annotations, full-quality exports, local axe checks, and optional watermark/timestamp controls. | Unlimited screenshot capture and image/PDF downloads. Premium is not required to download an unedited capture. |
| Annotations | Arrows, shapes, pen marks, text, and rulers are free. Marks can belong to one image or span a side-by-side comparison. | Premium includes cropping and annotation tools such as blur, text, and highlight, plus date stamps and smart PDF page splitting. |
| Export formats | Native-size PNG, JPEG, and WebP, plus image-based A4 PDF with fixed page breaks. A/B and Multi export the combined comparison. | Image exports including PNG and JPG, plus PDF with a choice of page size. Premium adds smart PDF page splitting. |
| Local storage | Captures and annotations stay in the browser profile. Export important work before clearing storage or uninstalling. | Its FAQ says screenshot history is stored locally in the browser, not on its servers. Uninstalling removes that history. |
| Long pages | Scrolls and stitches finite pages and bounded portions of growing feeds. Stop and save keeps the captured portion. Exports one PNG within size limits without resizing. | Scrolls and assembles full-page captures. Its FAQ describes splitting very large screenshots into multiple images, with a full-image PDF option. |
A GoFullPage alternative when screenshots need a comparison
A QA engineer checking a fix needs to show expected versus actual. A UI/UX designer reviewing a release needs to identify the spacing or wrapping that changed. A developer or product reviewer needs evidence that another person can inspect without recreating the state. SnapDiff keeps those screenshots together, highlights compatible pixel differences, and lets you annotate the relevant area before exporting.
Capture a viewport, a full page, or a selected area. For Area capture, draw a rectangle or select a page element to capture its visible bounds, without scrolling hidden content into view. Area works independently on either A/B side and keeps the selected device preset or custom viewport on Chrome; Firefox uses the current tab's layout. A and B can come from different tabs and domains, including staging and production. For a small set of states, use Multi to group 2-5 captures into one side-by-side review. Pixel Diff applies to compatible A/B captures; Multi is visual review only. GoFullPage's published feature list centers on capture and editing rather than this comparison workflow.
When GoFullPage is the better choice
Keep GoFullPage if you primarily archive pages and prefer a dedicated full-page capture workflow. Both products offer unlimited capture, and every SnapDiff feature is free. Both tools export PDF; SnapDiff fits the comparison to A4 width and splits long captures at fixed page boundaries. If cropping, blur, a choice of PDF page size, or smart PDF page breaks are central to your work, evaluate GoFullPage's relevant export and Premium options rather than assuming SnapDiff has those tools.
SnapDiff's PDF export is free on Chrome and Firefox. It preserves image detail, annotations, and per-image watermarks, but does not create searchable text or repeat watermarks on each page. PDF safety limits can require PNG or a shorter capture instead; PDF is not an unlimited archive format.
GoFullPage also stores screenshot history locally. Local storage is not a unique SnapDiff advantage in this comparison. The reason to choose SnapDiff is the capture-to-comparison workflow and visual QA tools, not a claim that GoFullPage uploads screenshots or lacks annotation features.
Pricing: SnapDiff is completely free
GoFullPage Free includes unlimited capture and image or PDF downloads. Its FAQ lists Premium at $12 USD/year, excluding tax and foreign exchange, with annual auto-renewal and a seven-day free trial. Premium adds editing, annotations, date stamps, smart PDF page splitting, and priority support. Downloading an edited capture requires Premium or its trial.
Every SnapDiff feature is free: unlimited annotations, A/B pixel Diff, Multi review, full-quality exports, local axe checks, and clean or custom watermark and timestamp controls. For a capture-only job, GoFullPage Free may be all you need; for recurring screenshot comparisons, assess the review workflow as well as price. Current SnapDiff browser limits are below.
Review layouts, languages, and accessibility alongside the capture
SnapDiff includes unlimited visual A/B comparison, responsive viewport review, locale simulation, and visual UI review in Chrome, all for free. Optional local axe accessibility checks are included free in Chrome and Firefox. A designer can compare a desktop layout with a phone viewport in Multi; any user can save axe findings beside a screenshot and export the report as JSON.
Device presets are not physical-device tests. Locale simulation requires site support and reloads the page; it does not translate content. Axe checks do not certify accessibility compliance. Firefox supports the core capture and review workflow and local axe checks, but not device presets or browser locale simulation.
Try SnapDiff without losing your GoFullPage history
You can keep GoFullPage for page archives and PDF exports while using SnapDiff for new visual comparisons. SnapDiff does not import GoFullPage history or editing layers. You can import PNG, JPEG, or WebP images into either or both sides of an A/B comparison, or mix an imported image with a browser capture. Different image dimensions support pixel Diff. PDF import is not supported. Do not uninstall GoFullPage before downloading history you want to keep.
- Export important GoFullPage captures as image files or PDFs and keep them separately. Leave the extension installed if you still need its history.
- Install SnapDiff from your supported browser's official store when available. Open a source page and capture A in an A/B workflow.
- Open the changed page, keep the same viewport and zoom, and capture B. Use Diff where supported, then add annotations.
- Export one comparison image or choose PDF for an A4 document. Long SnapDiff PDFs continue vertically across pages without content-aware page breaks.
Are all SnapDiff features free?
Yes. Every SnapDiff feature is free for personal and professional use: capture, comparison, annotations, full-quality exports, local accessibility checks, clean or custom watermarks, and timestamp controls. There is no paid plan, subscription, or activation key. Workflows are unlimited; a completed A/B pair or Multi group counts once, and editing or exporting adds no workflows. Browser capabilities and capture/export safety limits still apply.
Every SnapDiff feature is free
Capture, compare, annotate, and export without a workflow cap. Local axe accessibility checks, clean or custom watermarks, and timestamp controls are included. No account, payment, subscription, or activation key is needed. Screenshots stay in your browser.
Chrome 120+ is the full-feature baseline. Desktop Firefox 153+ is a limited-feature target, not a promise of a published store listing or complete browser parity. It does not support responsive presets or browser locale simulation. Read the browser support guide.
Sources and current plans
Reviewed against official product documentation on 2026-09-18.
Competitor capabilities and pricing can change. Follow their official links for current plan limits; SnapDiff workflows and competitor screenshot allowances are different units.