Which AI tools for law firms have a free plan?

Thirteen of the 125 tools in this directory post a free plan, a tier a firm can keep using at $0 rather than a trial that ends. They cover research and contracts (Counsel Stack, LOIS by Filevine, Macro), the phone and the website (Smith.ai, Tars), dockets, demands and estate plans (Docket Alarm, Novo, Trust & Will EstateOS), documents and transcripts (Legito, Rev, Voibe) and the firm's website (B12, Justia Elevate). What each free plan includes is below, read on the vendor's own pricing page on October 31, 2026, with the first paid step where one is posted.

Research, drafting and contracts

• Counsel Stack: Free, 25 research calls, no card. Cited research and citation checking inside Claude or ChatGPT; Pay as you go is $20 per 50 calls and Unlimited is $199/mo.
• LOIS by Filevine: free LOIS Explore tier, no credit card and no Filevine case connection. Legal research that checks each citation against a verification layer; paid plans are quote-based.
• Macro: macro-sm Free with 1GB, 100 files and 100k APU, and all features included, among them AI playbooks for contract review and AI Citations; macro-md is $20/user/mo. The vendor posts a no-training statement and names SOC 2 Type II and ISO 27001.

The phone and the website

• Smith.ai: Free $0/mo for 25 calls a month, then $3.00/call. A 24/7 AI receptionist that screens callers, runs intake questions and books consultations; Pro is $150/mo for 75 calls, with Clio, MyCase and PracticePanther listed.
• Tars: Freemium $0/mo for 50 conversations a month, basic LLM models and 5 knowledge bases. A website intake agent that asks preliminary conflict-check questions, routes by practice area and books in the chat; Premium is $499/mo.

Dockets, demands and estate plans

• Docket Alarm: Free, $0, 5 actions per week (searches, docket and document views combined). Federal, state, PTAB and USPTO dockets with an AI Assistant that answers questions about any case or judge; Pay-As-You-Go is $39.99/mo plus per-use fees and Flat-Fee is $99/user/mo.
• Novo: free plan that drafts a first demand letter at no charge with a Demand Strength score from the uploaded records; paid plans are quote-based, and partner logos show MyCase, Smokeball, CASEpeer and SmartAdvocate.
• Trust & Will EstateOS: free, with no cost to join the referral network or use the attorney platform and no referral fee. AI-Powered Estate Plan Analysis of uploaded wills and trusts, an Attorney Assistant chat and referrals of Trust & Will members by state and practice area; pricing tiers are planned for future phases.

Documents, dictation and transcripts

• Legito: free workspace, 'Free of charge forever', with Legito Sign included. Kedy AI converts Word documents into automated templates; paid plans are quote-based, and the vendor posts a no-training statement under ISO/IEC 27001.
• Rev: Free plan with 45 AI transcription and caption minutes a month, analysis of up to 5 files at a time and 1 user. Essentials is $25.49/seat/mo billed annually, and legal-formatted transcripts are sold à la carte from $2.25/page; the vendor posts a no-training statement and names SOC 2 Type II.
• Voibe: Voibe Free $0 with limited words on one device. On-device dictation on Apple Silicon Macs with a custom legal vocabulary, typing into any app including Clio; Voibe Dictation is $99/yr per seat billed annually.

The firm's website

• B12: Free on a b12sites.com subdomain. An AI website builder that drafts a law-firm site from a description; the Website plan is $20/mo billed yearly or $24/mo billed monthly with 100 AI credits a month.
• Justia Elevate: free Justia Connect membership and free Lawyer Directory profile alongside the paid plans. The Elevate website tiers, which include the Justia AI Writer for practice-area pages, are quote-based.

How to read this

A free plan is a count: calls, conversations, actions, minutes, files or words, and each listing carries the full plan table. Three of the thirteen vendors post both a no-training statement and a named security standard: Macro (SOC 2 Type II; ISO 27001), Rev (SOC 2 Type II) and Legito (ISO/IEC 27001); for the rest, each listing's Confidentiality column records what the vendor posts. Free trials are a different thing, and most paid tools in this directory offer one; the trial length sits on each listing.

Quick answers

Is there a free AI legal research tool for lawyers?

Counsel Stack gives 25 research calls free with no card, LOIS by Filevine has a free LOIS Explore tier, and Docket Alarm allows 5 free actions a week across federal and state dockets.

Is there a free AI receptionist for a law firm?

Smith.ai's Free plan is $0/mo for 25 calls a month, then $3.00/call, and Tars answers 50 website conversations a month free. Sona by Quo includes 10 AI-answered calls a month with any Quo phone plan, from $15/user/mo billed yearly.

Which free plans come from vendors that post a no-training statement?

Macro (SOC 2 Type II; ISO 27001), Rev (SOC 2 Type II) and Legito (ISO/IEC 27001) post that customer data is not used to train their models and name a standard.