What can SignWren do?

SignWren is an e-signature app for small businesses, freelancers and small teams. This page lists what the app does today. Anything marked coming isn't usable yet.

SignWren is software for signing documents electronically. It is not a law firm, does not give legal advice, is not a notary service, and is not set up for HIPAA-covered health information.

What can you send for signature?

You can send a PDF, a Word file or a photo of a document to one or more people, and they sign it in their browser on a phone, tablet or computer without creating an account. Word files are turned into a PDF first, so you check the pages before anything goes out.

As many signers as the document needs. Add each person, and choose whether they all sign at once or in an order you set. People can also be added as copies only.
Fields for each person. Signature, initials, date signed, name, text and checkbox fields, each given to one signer. How fields work
Templates. Save a prepared document as your own template, or import one of the 81 templates in SignWren's library and edit it. Free keeps 3 templates of your own and Pro 50; sharing templates with a team comes with Pro. How templates work
Bulk send (Pro and Business). Send one template to a list of people from a CSV file. Each row gets its own envelope and audit trail. How bulk send works
Public links and website embeds (Pro and Business). Turn a template into a link anyone can sign from, or put the form on your own web page. How public links work
In-person signing. Hand someone your phone or tablet and they sign it there, with the same steps and the same record. How in-person signing works
Reminders, expiry and fixes. Signers who haven't signed get automatic reminders, and you can send one yourself. Links expire after 30 days unless you pick between 1 and 120. You can void a document with a reason, correct a wrong email address, or resend an expired one as a new draft.

Free includes 10 envelopes a month for one sender. The help article on sending your first document walks through the whole flow.

How do signers prove who they are?

Every signer opens their own link from the email SignWren sends, and you can ask for extra codes on top of that before they see the document. Each signer also agrees to sign electronically before anything else, and that agreement goes into the record.

Access code. A code you make up and tell the signer yourself, by phone or in person. Every plan.
Email code. A 6-digit code SignWren emails to the signer when they open the link, so a forwarded link alone isn't enough. Every plan.
Text message code (Pro and Business, coming). A 6-digit code by text to a US or Canadian mobile number, with 50 a month on Pro and 200 on Business. It's built, but texting isn't switched on yet, so use an access code or an email code for now.

After 5 wrong codes the link locks for 15 minutes and you're told. The certificate of completion lists the checks each signer passed. How signer codes work and what signers see

What do you get back when everyone has signed?

You get one sealed PDF with every signature in place and a certificate of completion at the end, and everyone involved gets a copy. The PDF carries a digital seal, so a PDF reader that checks signatures flags it if anything changes after signing. The seal's certificate isn't one that PDF readers trust automatically yet, so a reader may say it can't confirm who made the seal; the check for changes works either way.

The audit trail. Who it was sent to, when each person opened and signed it, from which IP address and browser, and a fingerprint of the document. What's in the finished PDF
A public check page. Anyone can open app.signwren.com/check and choose a signed PDF to see whether it matches a document SignWren sealed. Only the file's fingerprint is sent; the PDF stays on their device. How the check works

SignWren signatures are simple electronic signatures in the EU's eIDAS terms, not advanced or qualified ones. What that means

Can SignWren connect to the tools you already use?

Some of them, yes, and anything that can make web requests can use the SignWren API. None of the connections below is made, reviewed or endorsed by the other company, and none is listed in another company's app store.

HR and ERP systems (Business)

An owner or admin on the Business plan can connect your own Workday, Oracle HCM Cloud, SAP SuccessFactors or SAP S/4HANA system in Settings. Templates can then be filled from a worker or purchase order record, and the signed PDF is filed back on that record. Your own administrator sets up the access on your side first; each help article says exactly what. We built these from each vendor's published API documentation and tested them against test servers made from it, so tell us how your first one goes.

ServiceNow and Salesforce

There is an app for ServiceNow and a package for Salesforce that your administrator installs in your own instance or org and connects with a SignWren API key (live keys come with Pro and Business). From a record, people send it with a SignWren template, and the status and signed PDF come back to that record. Both are early, so email us if you'd like to try one. There is also a sample project for PeopleSoft teams who want to build their own connection on the API.

Coming

We've built connections for Zapier, Make, monday.com and HubSpot, an Outlook add-in, a Gmail add-on, and picking files from Google Drive and OneDrive. Each still needs setup on our side, and some need the other company's review, before anyone can use it. They aren't available yet, and this page will say so when each one is.

What's included for larger teams?

Pro adds teams for a small office, and Business adds the controls a larger organization's IT and security people usually ask for. Every account has one owner, and everyone else is an admin, a sender or a viewer; SignWren checks the role on its own servers. What each role can do

Teams, a shared template library and viewers (Pro and Business), plus a usage page in Settings showing how much of each allowance you've used.
Your logo, colours and sender name (Pro and Business), and sending from your own domain (Business, coming: built, not switched on yet). How branding works
Single sign-on with SAML or OpenID Connect, and SCIM provisioning to add and remove people from your identity provider (Business).
Audit log export, IP allowlists, and retention policies with legal holds (Business).
A separate encryption key for your account (Business, coming), so your files are encrypted with a key of their own. It's built but not switched on yet.
Signature meaning (Business). Signers can sign with a meaning such as Approved, shown with their name and the time, after confirming who they are again. It's built in the style of FDA's Part 11 rules, but the feature alone doesn't make a system meet them; your own validation does that. How signature meaning works

Accounts and documents are stored in the United States. An EU data region isn't available yet. AI suggestions, such as suggested fields or a summary, are coming later; they'll be optional and off until an owner turns them on. How AI suggestions will work

SignWren isn't set up for HIPAA-covered health information and doesn't sign business associate agreements, on any plan. Why not

Is there an API?

Yes. SignWren has a JSON REST API that does what a sender does in the app: upload a file, add signers and fields, send it, follow its status, and download the sealed PDF and certificate. The documentation is public.

Sandbox and live keys. Sandbox keys for testing on every plan, with watermarked documents that aren't valid signatures; live keys with Pro and Business. The sandbox
Webhooks signed with HMAC-SHA256, so your system hears when a document is viewed, signed, declined or completed. Webhooks
Embedded signing and sending inside your own app, in a frame or by redirect. Embedded signing
SDKs for Node.js and Python. They aren't on npm or PyPI yet; we send the package files by email. Node SDK, Python SDK
An MCP server so an AI assistant can send your templates and check on them, with your approval before anything is sent. MCP server

Nothing in the API, the SDKs or the MCP server can sign for anyone: every signature is made by the signer. Start with the developer docs.

Which plan includes what?

Free covers occasional signing by one person, Pro covers a small office, and Business adds per-sender pricing and the larger-team controls above. The pricing page has the full table, and the help centre explains each part of the app.