DrawDiff
DrawDiff: A free, focused tool for visual and text comparison of scanned or revised PDFs. Ranked #18 of 25 in Document Comparison Software by our editors (6.9/10); pricing: Free plan; best for free visual comparison of scanned PDFs.
At a glance
- Editor score6.9 / 10
- PricingFree plan
- Best forFree visual comparison of scanned PDFs
- Free planYes
- Paid fromFree
- PDF comparisonYes
- Facts checked20 Sep 2026
Where it wins
- Pixel-by-pixel overlays show additions, removals, and unchanged content
- OCR fallback and selected-region text comparison support scanned PDFs
- Local browser processing, offline continuation, and JPG/PDF exports
Where it doesn't
- Web-only, with processing centered in the local browser
- Focused on PDF comparison rather than a broad document-format set
- Offline use begins only after the application has loaded
Our verdict on DrawDiff
DrawDiff is a browser-based PDF comparison tool for engineering drawings, technical documents, contracts, and other revisions. It compares PDF pages pixel by pixel, using color-coded overlays to show additions, removals, and unchanged content. Its free plan includes PDF comparison, pixel-accurate overlays, local browser processing, and JPG or PDF export. Because it requires no account and can continue working offline after loading, it suits individuals and teams that need a focused way to inspect document revisions without a subscription.
Its standout capability is visual inspection at the page and region level. An alignment tool helps account for shifted views, while automatic detection and numbering identify difference regions. The region inspector can show the overlay, original, and revised views together. For selected areas, DrawDiff adds word-level text comparison, and OCR fallback supports scanned or image-based PDFs. Together, these features make the product useful when formatting changes, drawing revisions, or image-based content matter as much as extracted text.
DrawDiff keeps its scope narrow: the published feature set centers on PDF comparison, visual overlays, OCR fallback, region inspection, and export. It is a strong fit for buyers who want free, browser-based PDF review with local processing and no account requirement. It is less suitable for teams looking for a broader document-comparison system spanning multiple file formats or a centralized platform workflow. Buyers who primarily compare PDFs, especially scanned documents, should find its focused approach aligned with that task.
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DrawDiff pricing
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DrawDiff fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| PDF comparison | Yes |
| Office file comparison | Not verified |
| Formatting changes | Yes |
| Redline output | Yes |
| Deployment | Web |
| Maximum file size | Not verified |
| Deployment | Cloud, Self-hosted |
| Platforms | Web |
| Support | Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan (source) |
| Website | drawdiff.com |
| Facts checked | 20 Sep 2026 |
Alternatives to DrawDiff
- DiffcheckerA broad comparison toolkit with free access and a $15 monthly desktop tier.9.3
- Litera CompareA broad comparison toolkit for redlines, scanned PDFs, and server-side workflows.9.2
- UltraCompareA broad desktop comparison suite for technical teams that need three-way merges.9.0
See all DrawDiff alternatives →
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Featured on iTechGuides
DrawDiff is listed in our Document Comparison Software directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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