Documents

Sign

Sign by OpenApps is a free DocuSign alternative. Free. No limit on documents or signers.

Free e-signatures. Send a document, get it signed. Upload a PDF or paste the text of a contract, add the people who need to sign, and send each of them a private signing link. They sign in the browser with no account. Everyone gets the signed PDF with an audit trail.

Open Sign Free. No limit on documents or signers.

Instead of DocuSign, Dropbox Sign, Adobe Acrobat Sign, PandaDoc, signNow

What you get, free

Unlimited documents, signers and templates
Upload a PDF, or paste or write the text and Sign turns it into a PDF
Signature, initials, date, name and text fields placed where you want them
Signers sign from a private link: no account, no app, works on a phone
Draw or type a signature
Audit trail: who signed, when, and a fingerprint of the exact document
Signed PDF with a completion certificate for everyone
API for AI assistants: create a signing request in one call

Storing your documents costs us a little; it stays free.

For AI assistants

An assistant can send a contract it wrote for signature in one HTTP call with the contract text and the signers' names, then share the signing links it gets back.

The app's guide for assistants is at sign-free.openapps.xyz/llms.txt, and its API at https://functions.bounded.sh/apps/1da91c033c738ab74538d13d/api.

How it compares

App	Free plan	Paid plans
Sign	Free. No limit on documents or signers.	None
DocuSign	No free plan for sending documents, only a free trial and a free account meant for signers.	Paid plans start around $10 to $15 a month for one person, and that entry plan is limited to 5 envelopes a month. Business plans run about $25 to $45 per user per month.
Dropbox Sign	Up to 3 signature requests a month, with unlimited self-signing.	Dropbox Sign (formerly HelloSign) has a very limited free tier, with paid plans from roughly $15 to $25 a month per user.
Adobe Acrobat Sign	A free Acrobat account can send 2 signature requests every 30 days; beyond that you need a paid Acrobat plan.	Acrobat Sign comes with paid Acrobat plans, typically $15 to $25 a month or more per user.
PandaDoc	You can create 5 documents a month, with up to 5 templates.	PandaDoc offers free e-signatures with limits, and its paid plans run from about $19 to $49 or more per user per month.
signNow	No free plan after a 7-day free trial.	signNow plans start around $8 to $20 per user per month.

Free plans checked October 2026 on each company's own page: DocuSign, Dropbox Sign, Adobe Acrobat Sign, PandaDoc, signNow. Paid prices are approximate and change often.

Compare every free option

Comparisons · October 18, 2026 The best free DocuSign alternatives in 2026 DocuSign has no free plan, and its Personal plan stops at five envelopes a month. Here are the free alternatives, with each free plan checked on the vendor's own site. Guides · October 19, 2026 How to have ChatGPT, Claude or any AI assistant send a contract for signature Add the OpenApps MCP server or point your assistant at Sign's API. It can draft a contract, send it for signature and return a link for each signer. Guides · October 19, 2026 How to sign a PDF for free, without an account Upload the PDF to Sign, add yourself or others as signers, sign from a private link and download the signed copy. Free, with no account.

Questions

Is it really free?

Yes. There is no paid plan and no cap on documents. Storing documents costs very little, and OpenApps pays for it.

Are electronic signatures from Sign legally binding?

In the US (ESIGN Act, UETA), the EU (eIDAS, simple electronic signatures) and most other countries, an electronic signature is valid when people intend to sign and a record of it is kept. Sign records who signed, when, from which link, and a SHA-256 fingerprint of the exact document. Some documents, such as wills or certain real estate filings, need more than an electronic signature, so check the rules for yours.

Do signers need an account?

No. Each signer gets a private link and signs in the browser.

Can my AI assistant use it?

Yes. Sign has a public API that needs no key. An assistant can create a document from text, add signers and get back their signing links. See the API section on the app.

Who can see my documents?

Only people with the document's private links. The links are long and random.