FREEDOM251

Freedom251 › Documents & Writing

Free and open first

Best Redlining Software in 2026

Redlining software helps review changes between contract versions and manage legal document review. Use this list when weighing tools for contract redlines, collaboration and approval tasks.

  1. 1

    Formable

    Free plan AndroidAPIiPhone+1

    Choose Formable if your workflow needs contract creation, AI review, redlining, and signing together. Its APIs and integrations also suit teams embedding contract steps in other tools.

    7.4 Free plan · paid from $29.99/mo Visit site
  2. 2

    Docgility

    Free trial APISelf-hostedWeb

    Choose Docgility when contract review and negotiation need shared workflows, AI assistance, and deployment control.

    6.4 Pricing on request · 30-day trial Visit site
  3. 3

    Robin AI

    Free plan ExtensionWeb

    Robin AI combines contract review, repository analysis, and legal operations tools, with citations and a Word add-in.

    6.4 Pricing on request Visit site
  4. 4

    BlackBoiler

    Free trial APIWeb

    Choose BlackBoiler if your team reviews contracts in Word and wants first-pass edits guided by its own playbook and language.

    6.3 From $1,250/user/yr · 7-day trial Visit site
  5. 5

    Gavel

    Free trial APIMacWeb+1

    Gavel combines AI-assisted contract work with legal document automation.

    6.3 From $83/mo · 7-day trial Visit site
  6. 6

    Draftable Compare

    Free trial Self-hostedWindows

    Draftable Compare handles a broad mix of legal document formats and provides multiple ways to review changes.

    6.1 From $10.75/user/mo (annual) · 5-day trial Visit site
  7. 7

    LegalOn

    Free trial ExtensionWeb

    Choose LegalOn if your in-house legal work centers on contract review and you also need playbooks, intake, or matter tracking.

    5.9 Pricing on request · 14-day trial Visit site
  8. 8

    Spellbook

    Free trial APIExtensionMac+2

    Choose Spellbook if your legal team needs contract review and drafting tools alongside cited legal research and reusable playbooks. Look elsewhere if you need a free plan or a publicly listed price.

    5.9 Pricing on request · 7-day trial Visit site
  9. 9

    PDiff

    Free trial MacSelf-hostedWindows

    Consider PDiff if you need detailed PDF comparison, document review controls, and report options across PDF and office formats.

    5.8 Pricing on request Visit site
  10. 10

    eBrevia

    Paid APISelf-hostedWeb

    eBrevia combines contract review, drafting support, question answering, and business-system connections.

    5.7 Pricing on request Visit site
  11. 11

    LegalSifter

    Free trial Web

    ReviewPro combines contract redlining with playbooks, document add-ins, and workflow features. Check the annual plan structure and trial eligibility against your team's needs before choosing it.

    5.6 Pricing on request Visit site
  12. 12

    Juro

    by Juro
    Paid API

    Juro covers key contract processes from templates and approvals through signing and renewal tracking.

    5.3 Pricing on request Visit site
  13. 13

    Legisway

    Paid Web

    Legisway combines legal work records with document collaboration, workflow, and review capabilities. Its three tiers have distinct listed scopes, but prices are not provided.

    4.5 Visit site
  14. 14

    Docsum

    Paid Web
    4.4 From $1,250/mo · 30-day trial Visit site
  15. 15

    Tritium

    Paid LinuxMacWeb+1
    4.3 Visit site
  16. 16

    Legal Redline

    Paid Web
    4.2 Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Compare free plans, trial periods, starting prices and licence terms before you choose. Check that each candidate works with your platform and covers Microsoft Word, PDF redlining, review help, clause libraries, approvals and activity records.

Questions

Does any redlining software here have a free plan?

Formable offers a free plan; its paid tier begins at $29.99 per month. Other listed products show paid pricing or trial terms.

Which tools offer trials?

Trials listed are 7 days for BlackBoiler and Gavel, 5 days for Draftable Compare, 14 days for LegalOn, and 30 days for Docgility and Docsum.

What does redlining software cost?

Published starting prices run from Formable's $29.99 per month paid plan to BlackBoiler's $1,250 per user per year. Pricing on request is listed for products such as eBrevia and LegalSifter.

Can these tools run on my platform?

The products span web, API, Windows, macOS, self-hosted and extension deployments. Check the individual product entry for its supported setup.

Which features should I compare?

Compare Word integration, PDF redlining, real-time collaboration, AI review assistance, clause libraries, approval workflows and audit logs.

More in Documents & Writing