Open source alternatives to ExtensionFast

200 open source apps like ExtensionFast, closest match first.

More like ExtensionFast

51

F

Flowise

Build AI agents visually, an open source agentic systems development platform

52

S

Skyvern

Transform manual browser tasks into automated workflows using AI

53

M

Monetr

Manage your money confidently with monetr

54

P

Paymenter

Automate subscriptions and manage payments

55

C

ChatbotX

Open source agentic chat marketing platform you can self-host, white-label

56

F

Flow

A modern browser combining minimalist design

57

O

opensource.builders

Find Open Source Alternatives

58

T

ToolJet

AI App Builder for Internal Tools

59

S

SnipNest

Find ready-to-use snippets that actually work

60

A

AI Directories

Submit Your AI Tool to 100+ Directories

61

F

FullStacked

Code, Run, Share. Anywhere

62

S

ShipShipShip

Self-hostable changelog and roadmap platform

63

P

Pushpin

Reverse proxy for realtime APIs

64

F

Formance

Build custom financial flows and integrate

65

S

Snippp

Code Toolkit Organizer

66

S

Scoopika

Bring AI agents to your application in minutes

67

M

Maxun

Turn any website into structured data

68

S

ScreenshotOne

Turn websites into screenshots via API

69

L

LogChimp

Collect, organize, and prioritize user feedback to build better products

70

I

Insomnia

The Collaborative API Development Platform

71

H

Hoppscotch

Lightweight, fast, and feature-rich API client for developers

72

K

Keycheck

Check keyboard shortcuts of 100+ apps

73

M

MarsX.dev

MarsX is a dev tool that unites AI, NoCode, Code and MicroApps

74

N

Nango

Open-source product integrations for 100+ APIs

75

U

Upsell Order Bump Offer For WooCommerce Pro

Boost Sales with Upsell Order Bump Offers for WooCommerce Pro

76

A

Automatisch

Open Source Zapier Alternative

77

G

GrowthBook

Experimentation, Feature Flags & Product Analytics Platform

78

U

Uptime Kuma

Monitors websites, APIs, and services

79

S

Silex

An online tool for visually creating static sites with dynamic data

80

T

TryPost

Plan, schedule, and auto-publish social media content across 10+ networks

81

T

Tabby

Self-hosted AI coding assistant that enhances productivity

82

T

TagBug

Open source, privacy first bug reporting for your website

83

O

OpenReplay

Self-Hosted Session Replay and Product Analytics

84

P

Pyvibe

Easily create styled web pages with Python

85

S

Strapi

TypeScript headless CMS that generates REST

86

R

Rakazo

Run persistent AI bots that sign into your tools, complete tasks autonomously

87

F

Firecamp

DX first open-source API devtool

88

C

Convo-UI

All-in-one Chatbot UI template for Developers

89

K

Khoj

Self-hostable AI assistant that connects to your docs and the web

90

C

Coder

Enterprise AI Development Infrastructure & Governance

91

M

Mixpost

Create, schedule, and manage social media content from your own server

92

P

Plunk

Open-Source Transactional Email Platform

93

C

Classified Script

Start your own classifieds website in minutes—no coding needed

94

L

Langflow

Build, deploy, and iterate on AI agents, RAG applications, and MCP servers

95

G

Grida

Design and build web applications on an open canvas

96

O

OneUptime

All-in-one solution for uptime monitoring, incident management

97

F

Fonoster

Build and deploy powerful voice and messaging applications

98

V

Vemetric

Simple, yet actionable Web & Product Analytics

99

A

Automa

No-code platform for building AI agents and RPA workflows

100

S

SnackBase

Startup Fast, Comply Like Enterprise