update
May 9, 2026
By Teun
Signegy offers free browser-only PDF tools with no uploads
Signegy is a free, open-source PDF toolkit that runs entirely in the browser, according to its launch page. It offers signing, merging, splitting, compressing, and other PDF tools without requiring an account or uploading files to a server.
Signegy is a new browser-based PDF toolkit that says it processes documents locally on the user’s device rather than uploading them to a server. The service advertises eight core tools at launch, including signing, merging, splitting, compressing, annotating, filling forms, rotating pages, and converting files.
According to the project’s site, every tool runs client-side in the browser. That means users drop a PDF into the page, work on it locally, and download the result without creating an account or sending the file to Signegy’s servers. The company describes the service as free, open source under the MIT license, and without trackers.
The signing tool is the most notable feature in the launch material. Signegy says it creates a cryptographic audit record when a user signs a PDF, bundling a SHA-256 hash, timestamp, and signer name into an audit.json file. The site says anyone can later verify the signed document and that the tool can detect tampering by recomputing the hash.
The project’s examples show a signed PDF being paired with an audit certificate that includes the document name, hash, signer, timestamp, and the Web Crypto API method used for signing. Signegy says the signing process uses the browser’s Web Crypto API and ECDSA P-256. It also says the implementation is auditable because the code is public.
Beyond signing, Signegy lists tools for merging multiple PDFs, splitting a document into pages or ranges, compressing files for email or uploads, adding annotations, filling form fields, and rotating pages. It also includes export tools for turning PDF pages into images and converting images or .docx files into PDFs.
The site says the service can also add page numbers, apply watermarks, crop margins, edit metadata, and verify signed PDFs. Additional tools listed on the page include HTML-to-PDF, Markdown-to-PDF, reorder, delete, Bates numbering, OCR, repair, and a browse-all page for the full set.
Signegy contrasts its model with paid PDF services such as DocuSign, Adobe Sign, HelloSign, Smallpdf, and ilovepdf. The site says DocuSign charges $25 per month, Adobe Sign requires an account, and some free-tier tools limit usage or add watermarks. Signegy says it has no signup, no file uploads, no watermarks, and no planned Pro tier for existing features.
The technical pitch is that browser-only processing avoids per-user infrastructure costs. Signegy says its server mainly serves static files, while PDF processing happens locally using pdf-lib, pdf.js, and the Web Crypto API. The company says users can open browser developer tools and confirm that no file-upload requests are made.
Signegy also says the service is not meant to replace enterprise signing platforms in every case. The site says multi-party enterprise signing still belongs with tools like DocuSign, while Signegy focuses on everyday PDF tasks that can be handled in the browser.
At launch, Signegy is positioning itself as a free, no-signup PDF toolkit that keeps files local and adds a verifiable signing workflow without a paid tier.
