Documents & Writing·Standings

Compare Redlining Software

Redlining software helps people review and revise contract language; compare its Word integration and PDF redlining tools to find a fit for your workflow.

This board shows a signal score out of 10, plus marks for a public API, open-source code and a free tier. Compare collaboration, AI review assistance, clause libraries, approval workflows and audit logs, too.

• 16 platforms
• 2 with a public API on this page
• 2 with a free tier
• Checked 7 Oct 2026

1. #PlatformSignalPlugs inPrice
2. 1
   F

   Formableformabledocs.com

   Contract software for drafting, reviewing, signing, and redlining in a browser, with a free plan.

   6.6 APIOpenFree Free tier · $0.35 one-time
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3. 2
   RA

   Robin AIrobinai.com

   Legal software for contract review and repository analysis, with citations to underlying documents.

   6.0 APIOpenFree Free tier
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4. 3
   G

   Gavelgavel.io

   Contract review software that reviews, redlines, and drafts in Microsoft Word or online.

   5.8 APIOpenFree From $417/yr
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5. 4
   P

   PDiffcsci.de

   Document comparison software that highlights PDF text changes in layout, formatting, and page breaks.

   5.7 APIOpenFree —
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6. 5
   B

   BlackBoilerblackboiler.com

   Contract redlining software that applies your playbook in Microsoft Word to suggest tracked changes and comments.

   5.6 APIOpenFree From $1,250/yr
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7. 6
   DC

   Draftable Comparedraftable.com

   Desktop software that compares documents and creates redlines for Word, PDF, spreadsheets, and more.

   5.6 APIOpenFree From $129/yr
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8. 7
   L

   LegalSifterlegalsifter.com

   A contract review tool that proposes tracked edits with plain-language reasons in a web app.

   5.5 APIOpenFree From $3,500/yr
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9. 8
   J

   Jurojuro.com

   A contract tool for approvals and renewal dates, with an API and paid pricing on request.

   5.5 APIOpenFree —
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10. 9
    D

    Docgilitydocgility.com

    Contract review software that compares legal text with playbooks and supports live, multi-party negotiations.

    5.4 APIOpenFree —
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11. 10
    S

    Spellbookspellbook.com

    An AI tool in Microsoft Word that spots contract issues and suggests edits and comments.

    5.3 APIOpenFree —
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12. 11
    L

    LegalOnlegalontech.com

    A legal tool that checks agreements and suggests revised wording in a web app or browser add-on.

    5.1 APIOpenFree —
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13. 12
    E

    eBreviaebrevia.com

    Contract software that analyzes agreements and drafts playbook-based redlines in a Microsoft Word add-in.

    4.9 APIOpenFree —
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14. 13
    T

    Tritiumtritium.legal

    Contract review software with AI assistance and Microsoft Word integration.

    4.5 APIOpenFree —
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15. 14
    L

    Legiswaywolterskluwer.com

    Cloud-based legal software with collaborative redlining, negotiation, and approval workflows.

    4.1 APIOpenFree —
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16. 15
    LR

    Legal Redlinelegalredline.com

    Web-based contract redlining with Microsoft Word integration, PDF redlining, and an audit log.

    4.0 APIOpenFree —
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17. 16
    D

    Docsumdocsum.ai

    Contract review software with AI assistance and Microsoft Word integration.

    4.0 APIOpenFree —
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Places #1, #2, #3, #4, #5 on this board are open to sponsors. Take #1 · Other ways to advertise

How to choose

Does it work with Word and PDF files?

Check Microsoft Word integration and PDF redlining against the documents your team reviews. The board compares both, but the available facts do not specify which tools support them.

What review and approval features do I need?

Compare real-time collaboration, AI review assistance, clause libraries and approval workflows. These features address different parts of reviewing and routing contract changes.

How can I compare plans and trial access?

Check whether a free plan is available, what paid access starts at, and whether a free trial is offered. For example, Formable lists a free plan and paid access from $29.99 per month; BlackBoiler lists paid access from $1,250 per user per year and a 7-day trial.

Where can I use the software, and does it have an API?

Compare platform availability with your team's needs. Listed platforms include web, API, Windows, macOS, self-hosted options and browser extensions. A public API can matter when you need software to connect with other systems.

Questions

What is redlining software used for?

It helps people review and revise contract language. Compare Word integration, PDF redlining and the review and approval features your team needs.

Which redlining software has a free plan?

Formable is listed with a free plan and paid access from $29.99 per month.

How much does redlining software cost?

Listed pricing varies: Formable starts at $29.99 per month, Draftable Compare at $10.75 per user per month on annual billing, and BlackBoiler at $1,250 per user per year. Some makers provide pricing on request.

Can I try redlining software before paying?

Trial periods listed include 5, 7, 14 and 30 days. Trial availability varies by product.

What platforms support redlining software?

Listed platform types include web, API, Windows, macOS, self-hosted deployment and browser extensions.

Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure