Documents & PDFs · checked 2026-10-14Can I vibecode DocuSign?
NOT REALLY· don't bother
The mechanics of Docusign fit in a weekend: upload a PDF, place fields, email a link, capture a signature, stamp it onto the file and log each step. What you pay for sits outside the code: a name that banks, landlords and courts already accept, identity checks, certificate-based signatures where a country asks for them, and an audit trail from a vendor willing to stand behind it. A home-built signer produces a simple electronic signature, which can be enough for low-stakes paperwork if you keep proper records. For anything disputed or regulated, use Docusign, or a hosted open-source option such as Documenso or DocuSeal that has already done the compliance work.
$11/moprice
$132it costs you a year
weekendbuild time
—people replaced it
What you need on hand.
DifficultyIntermediate · Some system setup or keys.
TimeA weekend for sending and signing; the legal side is up to you
- Claude Code, Codex or CursorAny of them can run the prompt.
- Node.js 22better-sqlite3 compiles a native module, so build tools must be installed.
- An SMTP accountYour mail provider's SMTP details, kept in .env.
- A tunnel or small serverSigners outside your network need a public HTTPS address, for example Cloudflare Tunnel.
Before you buildSigning documents that others send you is free. For your own sends, Documenso's hosted free plan (5 documents a month) or self-hosted DocuSeal may do the job without any build.
- 1. Install one agent: Claude Code, Codex, Cursor.
- 2. Make an empty folder and open it in the agent.
- 3. Paste the prompt below, press enter, and answer its questions as it builds.
The prompt
Build me a small self-hosted e-signature tool to replace Docusign for my occasional documents. Requirements: - Node.js 22 + TypeScript: a Fastify API and a React UI built with Vite. `npm start` serves http://127.0.0.1:4950; links sent to signers are built from BASE_URL in .env. - Storage: better-sqlite3 in ./data/sign.db and PDFs in ./data/files/. The original upload is never modified; the signed copy is written next to it. - Sender flow: upload a PDF, render pages with `pdfjs-dist`, drag signature, date and text fields onto them, assign each field to a signer (name and email), then send. - Signing links: a random 32-byte token per signer, stored hashed, expiring after 14 days. A signer sees only their own fields. Send the link with `nodemailer` using SMTP settings from .env. - Signer page: shows the PDF, needs a tick on "I agree to sign electronically", then lets the signer draw (`signature_pad`) or type a signature and submit. A Decline button records a reason. - Finishing: when everyone has signed, stamp the signatures with `@cantoo/pdf-lib`, append a certificate page (title, SHA-256 of the original, each signer's name, email, time, IP address and user agent) and compute the SHA-256 of the final file. Email the result to everyone. - Audit log: an append-only table of events (created, sent, opened, signed, declined, expired), shown to the sender and exportable as CSV. - Single sender, no accounts for signers, no telemetry; mail goes only through my SMTP server. - Out of scope: identity verification, certificate-based or qualified signatures, SMS, bulk send, templates and integrations. - README: setup, SMTP and tunnel instructions, and a plain note that this produces a simple electronic signature, so contracts that need stronger proof should go through a vendor.
Opens your agent with the prompt filled in, you press enter. Or copy it and paste it into an empty folder.
Then keep going
Next prompts, same folder.
The first prompt builds the core. Run these one at a time in the same folder to grow it into your own DocuSign.
Add templates to the e-signature tool in this folder. Requirements: - Save a document's field layout (type, page, position, size, signer role) as a template. - Start a new send from a template by uploading a PDF and mapping roles to names and emails. - Reject a template when the new PDF has fewer pages than the highest page used. - A Templates page with rename and delete. - Update the README.
Add reminders to the e-signature tool in this folder. Requirements: - A daily job (`node-cron`) that emails unsigned signers after 3 days and again after 7. - Void the document after the 14 day link expiry and email the sender. - A REMINDER_DAYS setting in .env and a per-document switch to turn reminders off. - Log every reminder in the audit table. - Update the README.
Add a digital signature to the final PDFs of the e-signature tool in this folder. Requirements: - Sign the finished PDF with `node-signpdf` using a PKCS#12 file named in .env. - Generate a self-signed certificate with a command `npm run make-cert` for testing. - Show in the sender view whether the file's signature still validates. - Say plainly in the README that a self-signed certificate proves the file is unchanged, not who signed. - Update the README.
Add a Docusign importer to the e-signature tool in this folder. Requirements: - Read DOCUSIGN_ACCESS_TOKEN and DOCUSIGN_ACCOUNT_ID from .env and page through completed envelopes with the eSignature REST API. - For each envelope download the combined PDF and the certificate of completion into ./data/archive/<year>/<envelope-id>/, and skip those already saved. - Respect rate limits with a pause and retry on 429 responses. - Write an index.csv with subject, sent date, signers and file paths. - Update the README with how to get a token.
What you lose
- Recognition: other parties and courts know Docusign's certificate of completion
- Identity checks, SMS delivery and signature types with stronger legal standing
- Connections to Google Drive, Salesforce, Slack and 1,000+ other apps
- Bulk send, payment collection, web forms and locked templates
- The mobile app and signing screens in dozens of languages
Why people still pay
A signature only helps if the other side accepts it without argument. Docusign is the name legal teams, landlords and banks already trust, and each finished envelope comes with a certificate recording who signed, when and from where. Teams add the plumbing: templates, reminders and links into the CRM or the file store. For one person signing a few documents a month, the fee mostly buys that acceptance.
DocuSign or your own copy?
Over
Your usage
12h ×$/h
DocuSign, 1 yr$132
Your own copy, 1 yr$44running + build session
You keep$89pays for itself in the first month
Estimate · Free on your own machine. A tunnel is free; a small VPS for a permanent address adds a few dollars a month. The build is token usage on your agent plan.
Take your data, then cancel.
1 · Take your data out of DocuSign
- 1Documents: on the Agreements page open a completed envelope and click Download; choose separate files in a ZIP or one combined PDF.
- 2Certificate of Completion: open the envelope details, click the download icon and choose Certificate of Completion. If it is missing from the combined PDF, an admin can change it under Admin > Signing Settings > Envelope Delivery.
- 3There is no built-in bulk download. Docusign Retrieve (a paid Windows add-on), Connect or the API do it in bulk; for a few envelopes, downloading each one by hand is simplest.
2 · Cancel DocuSign
- 1As an administrator open Admin > Plan and Billing > Manage Subscription and choose Cancel subscription. The account drops to a free account at the end of the term and keeps your documents.
- 2To close the account entirely: Manage Subscription > Switch Plan, then Close Account at the bottom. Documents become inaccessible afterwards.
- 3Plans bought through Apple or Google Play are cancelled in the store, and plans bought from a sales rep cannot be cancelled during the contracted term.
- Downgrade rather than close if you want to keep your agreements; closing removes access to them.
- On the annual plan billed monthly, cancelling after 30 days leaves the rest of the year due. Annual plans bought online get a one-time refund within 30 days, and monthly plans are not refunded.
- Download the certificate of completion with every contract you might ever need to prove.
- Closing a free account needs a support request from an administrator.
Checked 2026-10-14 against DocuSign's docs: 1, 2, 3, 4, 5, 6
The escape hatch
Don't feel like building it? These are already free.
DocumensoOpen sourceOpen-source signing platform with templates and an API; the hosted free plan covers 5 documents a month.★ 15k · active Oct 2026 · docker to self-host
WebVisit ↗DocuSealOpen sourceSelf-hosted document signing with a field builder, reusable templates and an API.★ 19k · active Oct 2026 · docker to self-host
WebVisit ↗OpenSignOpen sourceOpen-source e-signature app with templates and a self-host option; the repo carries an AGPL license with a few exceptions.★ 7.1k · active Oct 2026 · docker to self-host
WebVisit ↗
WebVisit ↗DocuSealOpen sourceSelf-hosted document signing with a field builder, reusable templates and an API.★ 19k · active Oct 2026 · docker to self-host
WebVisit ↗OpenSignOpen sourceOpen-source e-signature app with templates and a self-host option; the repo carries an AGPL license with a few exceptions.★ 7.1k · active Oct 2026 · docker to self-host
WebVisit ↗
The numbers
DocuSign pricing
| Plan | Monthly | Annual, per month | What you get |
|---|---|---|---|
| Personal | $11 | $11 | One user, 5 envelopes a month, templates, stored agreements, 1,000+ integrations. |
| Standard | $30 | $30 | Up to 50 users, 100 envelopes per user per year, shared templates, branding, comments, delegated signing. |
| Business Pro | $45 | $45 | Up to 50 users, 100 envelopes per user per year, bulk send, payment collection, web forms, PowerForms. |
| Enhanced | custom | — | Custom envelope limits, SSO, central org management, 24/7 support, Salesforce document generation. |
- Free tier
- No free plan; recipients sign for free.
- Billing
- The price shown is "Annual, billed monthly": a one-year commitment paid in instalments, renewing automatically. Cancelling within 30 days costs nothing; after that the rest of the year is due. Annual plans bought on docusign.com get a one-time 30-day refund, and monthly plans can be cancelled without paying the next month.
- Hidden costs
- Personal stops at 5 envelopes a month. Standard and Business Pro allow 100 envelopes per user per year, and every envelope beyond that is billed pay-as-you-go. SMS delivery starts at $0.36 per message and ID verification at $2.40 per attempt. Branding and shared templates need Standard, while bulk send and payment collection need Business Pro.
- Source
- ecom.docusign.com
Also on the list
Related apps
No free plan is listed, and signing a document someone sends you never needs an account. Support pages mention a 30-day trial that ends in a free account.
Not really. A signature only helps if the other side accepts it without argument. Docusign is the name legal teams, landlords and banks already trust, and each finished envelope comes with a certificate recording who signed, when and from where. Teams add the plumbing: templates, reminders and links into the CRM or the file store. For one person signing a few documents a month, the fee mostly buys that acceptance. The prompt on this page builds the closest honest substitute.
About $11 a month on the Personal plan, $132 a year (checked 2026-10-14).
Recognition: other parties and courts know Docusign's certificate of completion; Identity checks, SMS delivery and signature types with stronger legal standing; Connections to Google Drive, Salesforce, Slack and 1,000+ other apps; Bulk send, payment collection, web forms and locked templates; The mobile app and signing screens in dozens of languages. If any of those matter to you, keep paying.
Yes: Documenso (open source), DocuSeal (open source), OpenSign (open source).