Top 12 Open-Source Alternatives to Web3Forms

Web3Forms

Contact forms for static websites without PHP or Backend server.

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Product categories

AI API APIs Code Analysis Code Coverage Code Quality Code Review Developer Tools Open Source SaaS Web Frameworks Website Builder

Summary

The top open-source alternatives to Web3Forms are SonarCloud, Supabase, and Webhook.site. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

SonarCloud Landing Page
1

SonarCloud

Enhance your workflow with continuous code quality, SonarCloud automatically analyzes and decorates pull requests on GitHub, Bitbucket, Azure DevOps and GitLab on major languages.
Pricing:
- Open Source
- Freemium
- Free Trial
- €10.0 / Monthly (100,000 Lines of Code)
#Code Review #DevOps Tools #Developer Tools 12 social mentions
Supabase Landing Page
2

Supabase

An open source Firebase alternative
Pricing:
- Open Source
#Realtime Backend / API #Backend As A Service #Web Frameworks 501 social mentions
Webhook.site Landing Page
3

Webhook.site

Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails.
Pricing:
- Open Source
- Freemium
- $14.0 / Monthly
#API #Sales Workflow #Data Integration 76 social mentions
Unicorn Platform Landing Page
4

Unicorn Platform

Create stunning websites easily with Unicorn Platform's new AI version.
Pricing:
- Open Source
- Freemium
- Free Trial
- $8.0 / Monthly (custom domain)
#Marketing #Website Builder #Conversion Optimization 25 social mentions
Vaadin Framework Landing Page
5

Vaadin Framework

Vaadin is a web application framework for Rich Internet Applications (RIA).
Pricing:
- Open Source
#Web Frameworks #JavaScript Framework #Developer Tools 39 social mentions
Warrant Landing Page
6

Warrant

Authorization and access control infrastructure for developers
Pricing:
- Open Source
#SaaS #Security #Developer Tools 22 social mentions
Shields.io Landing Page
7

Shields.io

GitHub badges as a service
Pricing:
- Open Source
#Software Development #API Tools #Developer Tools 78 social mentions
tolgee.io
8

Tolgee

We are saving developers time providing tool for Web application Localization
Pricing:
- Open Source
- Freemium
- Free Trial
#Open Source #Translation #Developer Tools 47 social mentions
unpkg Landing Page
9

unpkg

The CDN for everything on npm
Pricing:
- Open Source
#CDN #Cloud Computing #Developer Tools 31 social mentions
SonarQube Landing Page
10

SonarQube

SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
Pricing:
- Open Source
- Freemium
- Free Trial
- $150.0 / Annually
#Open Source #Code Review #Developer Tools 1 social mentions
ESLint Landing Page
11

ESLint

The fully pluggable JavaScript code quality tool
Pricing:
- Open Source
#Developer Tools #Code Coverage #Code Quality 265 social mentions
Astro Build Landing Page
12

Astro Build

Astro is the web framework that you'll love to use.
Pricing:
- Open Source
#Blogging #Website Builder #Blogging Platform 252 social mentions