UI frameworks, CSS, browsers, design tools
Codemagic is a fully hosted and managed CI/CD for mobile apps. You can build, test, and deploy with a GUI-based CI/CD tool. The free tier offers 500 free minutes/month and a Mac Mini instance with 2.3 GHz and 8 GB of RAM.
FlutLab is a modern Flutter online IDE and the best place to create, debug, and build cross-platform projects. Build iOS (Without a Mac) and Android apps with Flutter.
FlutterFlow is a browser-based drag-and-drop interface to build mobile app using flutter.
A lightweight comments widget built on GitHub issues. Use GitHub issues for blog comments, wiki pages, and more!
A feature-rich comment system for WordPress, Tumblr, Blogger, and many other website platforms.
Open source hosted comments platform, pay what you can for "One moderator on a few domains with complete control over behavior & appearance"
GraphComment is a comments platform that helps you build an active community from the website’s audience.
Electronic Signature platform with a REST API. You can receive notifications with webhooks. Free plan watermarks signed documents but allow unlimited envelopes + signatures.
Unlimited forms with 50 monthly submissions, spam protection, email notification, and a drag-and-drop designer that can export HTML. Additional features include custom field rules, teams, and integrations to Google Sheets, Slack, ActiveCampaign, and Zapier.
Share and embed unique-looking forms on your website-no limits on the number of forms created or features restricted by the plan. Get up to 100 submissions every month for free.
Feature rich form endpoint. Works great with static sites. The free plan includes up to 1 website with up to 50 monthly submissions.
Embed a PDF editor on your website and turn any PDF into a fillable form. The free plan allows unlimited PDFs with three submissions per PDF.
Create fully-responsive and captivating forms in seconds, without knowing how to code, and collect unlimited responses for free!
Forms backend with bot detection and encrypted archive. Forward submissions via UI to email, Slack, or Zapier. Use your own front end. No server code is required. The free plan gives unlimited forms and 100 submissions per month.
Create online forms for free, collect submissions, accept payments, automate workflows, and get documents signed with built-in e-signatures. Free plan includes 5 forms, 100 monthly submissions, 10 e-sign documents, 10 payment submissions, and more.
99% of all the features are free. The free tier lets you have: unlimited forms, unlimited submissions, email notifications, form logic, collect payments, file upload, custom thank you page, and many more.
Drag and drop online form builder. The free tier lets you create unlimited forms and collect unlimited submissions. Comes with pre-built templates, anti-spam, and 100MB file storage.
Include beautifully designed forms on websites. The free plan allows only ten fields per form and 100 monthly responses.
Collect feedback using delightful surveys with high response rates. Free plan includes 1 active survey, 25 responses per survey and customizable templates.
Free plan allows collecting 25 total feedback submissions. Easy to integrate with React and Vue components provided.
Form to Email service, free plan allows unlimited forms, 250 submissions per month, support by Customer assistance team.
Quick forms to use on websites. The free plan has a limit of 100 submissions each month.
Form builder and backend with AI-driven logic. Free plan includes 100 responses per month, unlimited forms (including AI-created forms), webhooks, and embedding.
Pull feedback from all sources and send follow-up surveys with one tool. Automatically analyze feedback and extract insights with AI. Free email, website, in-product or mobile surveys, AI survey creator, and 25 monthly responses.
Powerful, developer-friendly form builder. Build signup & login, user onboarding, payment flows, complex financial applications, and more. The free plan allows up to 250 submissions/month and five active forms.
Contact forms for Static & JAMStack Websites without writing backend code. The free plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month.
Integrate HTML forms easily without any server-side code for free. After the user submits the form, an email with the form content will be sent to your registered address.
Headless form backend for developers. The free plan allows 100 form submissions per month including file uploads, server-side field validation, email notifications, spam protection and Zapier.
Online forms, unlimited single page forms/month, 100 submissions/month, email notifications.
Form Plume is a form backend for HTML and JavaScript forms. One endpoint gets you spam filtering, email notifications, file uploads, webhooks, and a clean inbox. Free for 500 submissions/mo.
Send email using an HTTP POST request. The free tier limits to 50 submissions per form per month.
Easy form endpoints for your HTML forms. Free Forever. No registration is required.
Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 250MB file storage, Zapier integration, CSV/JSON export, custom redirect, custom response page, Telegram & Slack bot, single email notifications.
Create online forms with powerful features like conditional logic, automatic score calculator, and AI. Collect up to 100 responses with a free plan, embed your forms on a website, or use them with a link.
Create unlimited forms get unlimited submissions free of cost. Use professionally created 1000+ form templates or create forms from scratch. Get features like email notifications, form logic, collect payments, file upload, custom thank you page, and many more.
Endpoint for HTML forms submissions. With notifications, spam blockers, and GDPR-compliant data processing. Free plan for basic usage.
Form backend platform for intelligent developers. The free plan allows 250 form submissions per month. Friendly modern GUI. Integrates with Google Sheets, Airtable, Slack, Email, and others.
A Headless CMS for developers and marketers that works with all modern frameworks. The Community (free) tier offers Management API, Visual Editor, ten sources, Custom Field Types, Internationalization (unlimited languages/locales), Asset Manager (up to 2500 assets), Image Optimizing Service, Search
Set up WordPress on any cloud in less than 5 minutes! The free tier includes 1 server, 2 sites, free SSL certificates, and unlimited cron jobs. No time limits or expirations-your website, your way.
Platform for structured content with an open-source editing environment and a real-time hosted data store. Unlimited projects. Unlimited admin users, three non-admin users, two datasets, 500K API CDN requests, 10GB bandwidth, and 5GB assets included for free per project.
Headless PIM with ecommerce support. Built-in GraphQL API. The free version includes unlimited users, 1000 catalog items, 5 GB/month bandwidth, and 25k/month API calls.
Headless CMS. Content management and delivery APIs in the cloud. Comes with one free Community space that includes five users, 25K records, 48 Content Types, 2 locales.
Headless CMS. Content management interface with fully hosted and scalable API. The Community Plan provides unlimited API calls, documents, custom types, assets, and locales to one user. Everything that you need for your next project. Bigger free plans are available for Open Content/Open Source proje
Offers free tier for small projects. GraphQL first API. Move away from legacy solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first.
Offers free tier for small projects. DatoCMS is a GraphQL-based CMS. On the lower tier, you have 100k/month calls.
Replacing Forestry.io. Open source Git-backed headless CMS that supports Markdown, MDX, and JSON. The basic offer is free with two users available.
Offers free tier for small projects. API / GraphQL first. Open source and based on event sourcing (versing every change automatically).
Free AI website creator from Mozilla, create a beautiful website for your business from a few simple inputs. Free custom domain, no credit card needed.
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