Create, fill, and sign digital documents (alternative to DocuSign). ([Demo](https://demo.docuseal.tech/), [Source Code](https://github.com/docusealco/docuseal)) `AGPL-3.0` `Docker`
docuseal.co
Alternatives to
Firma.dev
Best alternatives to Firma.dev in 2026
Think of Firma.dev as a signature stamp you can bolt onto any website or app: instead of building your own way to let people sign documents, or paying a lot of money for a big-name tool like DocuSign, a developer plugs in this API and gets a working "sign here" flow in hours, not weeks, at a fraction of the per-document cost. Firma.dev is a REST API for embedding legally-compliant electronic signatures (ESIGN, UETA, eIDAS, GDPR, HIPAA-compliant) directly into SaaS products, at €0.049 per envelope with no minimums or contracts. It ships with an OpenAPI-documented REST API, an embeddable template editor and signing widget, webhooks, white-label branding, multi-tenant workspaces for isolating customer data, and a 7-language signing interface supporting Latin, Cyrillic, Greek, Japanese and Korean scripts. Launched July 2026, it's EU-hosted (AWS Paris + Stockholm CDN) and closed-source.
Quick comparison of Firma.dev alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Grand public | Entreprises | Développeurs | — | |
| 2 | Développeurs construisant des systèmes d'emails transactionnels ou marketing qui veulent un rendu fiable multi-clients sans dépendance externe. | — | |
| 3 | Développeurs React/Next.js construisant des interfaces de chat IA ou affichant du contenu généré par LLM en streaming. | — | |
| 4 | Développeurs web et créateurs de Progressive Web Apps voulant générer rapidement l'ensemble des assets PWA à partir d'une seule image source. | — | |
| 5 | Développeurs Rust construisant des outils SEO, des crawlers ou des plateformes de contenu | — | |
| 6 | Petits commerçants (boutiques physiques, vendeurs de marché, ventes ponctuelles) souhaitant une présence en ligne simple sans expertise technique. | — | |
| 7 | Développeurs frontend/React construisant des interfaces terminal ou monospace | — | |
| 8 | PHP developers on shared/LAMP hosting who want a minimal REST API framework without Composer or build tools. | — | |
| 9 | Petites entreprises et independants qui veulent un site pro sans apprendre un editeur visuel | — | |
| 10 | Développeurs full-stack sur Next.js, SvelteKit, Nuxt ou Expo voulant un backend typé sans dépendance à un service tiers | — | |
| 11 | Équipes de développement construisant et gouvernant des API, y compris avec des agents IA | — | |
| 12 | Agences web et marketing, studios de design, équipes QA internes, freelances | — |
#1
#2
Open-source React component library for building email templates that render consistently across Outlook, Gmail, and Apple Mail. Includes pre-built layouts and a browser-based playground.
unitpost.com
- ✓ Fonctionne 100% offline, aucune dépendance API externe
- ✓ Composants React avec styling façon Tailwind compilé en CSS inline
#3
A streaming-native Markdown renderer for React that caches already-rendered blocks instead of re-parsing the whole message on every token, built for LLM chat interfaces.
github.com
- ✓ Cache par sous-bloc évite le re-parsing complet à chaque token
- ✓ Nettement plus rapide que les alternatives sur du contenu incomplet
#4
Generate 50+ PWA assets from a single source file, streamlining Progressive Web App asset creation.
assets.swoff.space
- ✓ Génère plus de 50 assets PWA en une passe
- ✓ Génère aussi manifest et balises HTML prêtes à coller
#5
Open-source Rust library that checks a webpage's technical SEO health — canonical tags, robots directives, structured data — and audits whether AI crawlers like GPTBot are blocked or allowed.
github.com
- ✓ Bibliothèque performante et zéro-dépendance
- ✓ Audit unique des règles crawler IA (GPTBot etc.)
#6
Python static site generator that turns a CSV spreadsheet of products into a single, free, self-contained HTML storefront with no backend hosting required.
codeberg.org
- ✓ Aucune dépendance externe ni JavaScript requis
- ✓ Sortie en un seul fichier HTML facile à héberger n'importe où
#7
A free, open-source React component library with a terminal/ASCII look, built on shadcn/ui, for developers who want their web app to look like a monospace terminal interface.
ascii.cnlibs.com
- ✓ Esthétique terminal/ASCII prête à l'emploi
- ✓ Basé sur shadcn/ui (code source possédé)
#8
A tiny, single-file PHP framework for building REST APIs on cheap shared hosting, without Composer, build steps, or thousands of framework files.
github.com
- ✓ Single-file framework — deploy by dropping phpez.php onto shared hosting, no Composer needed
- ✓ Automatic JSON serialization and ORM removes a lot of typical PHP boilerplate
#9
A chat-first website builder: you tell ChatGPT, Claude or Perplexity what your site should say and do, and it handles hosting, domain, email and edits.
agentbuild.it
- ✓ Gestion du site entierement par conversation avec ChatGPT/Claude/Perplexity
- ✓ Domaine, email pro et hebergement inclus au meme prix
#10
A framework that lets you define your entire backend — database schema, server actions, authentication — as TypeScript in a single folder.
typebase.io
- ✓ Type-safe backend defined entirely in TypeScript, in your own repo
- ✓ Built on established tools (Drizzle ORM, oRPC, better-auth) rather than reinventing them
#11
An API platform where a single OpenAPI spec drives design, mock servers, automated tests, and auto-updating documentation.
routebase.dev
- ✓ Single OpenAPI spec drives design, mocks, tests, and docs — no drift between them
- ✓ Git-like workflow: branches, merge requests, breaking-change detection
#12
AI review agents that sweep every page of a website before launch and catch dead links, typos, broken forms, and brand-guideline slips — the QA work a human normally clicks through by hand.
usesuperflow.ai
- ✓ Palier gratuit généreux, sans carte bancaire
- ✓ Agents IA automatisent la revue pré-lancement
FAQ about Firma.dev alternatives
- What is the best alternative to Firma.dev in 2026?
- Based on our selection, Docuseal is the best alternative to Firma.dev in 2026. Create, fill, and sign digital documents (alternative to DocuSign). ([Demo](https://demo.docuseal.tech/), [Source Code](https://github.com/docusealco/docuseal)) `AGPL-3.0` `Docker`. See our full ranking above to compare all options.
- Is Firma.dev free?
- Firma.dev is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Firma.dev are there?
- mySelectas has listed 12 alternatives to Firma.dev in the Web Development & Frameworks category. Our selection is updated regularly to include the best options available.