Open Source Developer Tools

A curated collection of the 57 best open source Developer Tools for inspiration and reference. Each listing includes a website screenshot along with a detailed review of its features.

Tolgee

Effortless localization for modern web applications

Stars
2,043
Forks
203
Last commit
22 hours ago

Dify

AI-powered app creation without coding complexities

Stars
52,172
Forks
7,593
Last commit
16 hours ago

Hoppscotch

Sleek, intuitive API development and testing platform

Stars
65,637
Forks
4,563
Last commit
9 days ago

Gitea

Self-hosted Git service for seamless collaboration

Stars
45,214
Forks
5,498
Last commit
11 hours ago

TiDB

Scale-out SQL database for real-time analytics

Stars
37,313
Forks
5,853
Last commit
10 hours ago

Plane

Open-source project management for modern teams

Stars
30,797
Forks
1,723
Last commit
16 hours ago

Insomnia

Powerful API development and testing made effortless

Stars
34,946
Forks
1,982
Last commit
13 hours ago

Bruno

Lightweight, fast, and open-source API client for developers

Stars
27,486
Forks
1,266
Last commit
16 hours ago

HTTPie

Modern command-line HTTP client for the API era

Stars
33,969
Forks
3,683
Last commit
20 days ago

Medusa

Open-source e-commerce for modern developers

Stars
26,008
Forks
2,617
Last commit
10 hours ago

TipTap

Craft rich text experiences with ease

Stars
27,594
Forks
2,293
Last commit
21 hours ago

GitLab

AI-powered DevSecOps for faster, secure software delivery

Stars
23,808
Forks
5,739
Last commit
9 hours ago

Tabby

AI-powered code completion for seamless development

Stars
21,926
Forks
1,005
Last commit
10 hours ago

Reflex

Web apps in pure Python, deployed with a single command

Stars
20,383
Forks
1,173
Last commit
12 hours ago

Signoz

Open-source observability platform for cloud-native apps

Stars
19,405
Forks
1,302
Last commit
13 hours ago

Tailscale

Secure networking made simple for teams of any size

Stars
19,436
Forks
1,520
Last commit
10 hours ago

Pulumi

Infrastructure as code in your favorite language

Stars
21,867
Forks
1,124
Last commit
13 hours ago

Ntfy

Simple, fast, and secure push notifications for all

Stars
18,527
Forks
729
Last commit
2 months ago

Infisical

Secure secret management for modern development teams

Stars
15,690
Forks
980
Last commit
10 hours ago

Daytona

Effortless cloud development environments at scale

Stars
10,925
Forks
841
Last commit
6 days ago

Gitpod

Cloud-based development environments, ready in seconds

Stars
12,999
Forks
1,243
Last commit
15 hours ago

Trigger

Streamline your backend jobs with ease and efficiency

Stars
9,368
Forks
585
Last commit
13 hours ago

LiveKit

Real-time communication infrastructure for developers

Stars
10,605
Forks
893
Last commit
1 day ago

Mage

Magical data pipeline tool for seamless transformations

Stars
7,972
Forks
774
Last commit
2 days ago

Scalar

Open-source API documentation and testing platform

Stars
7,462
Forks
237
Last commit
12 hours ago

NHost

Serverless backend platform for modern app development

Stars
7,945
Forks
465
Last commit
18 hours ago

Highlight

Real-time observability for modern web applications

Stars
7,668
Forks
373
Last commit
10 hours ago

Mockoon

Effortless API mocking for seamless development

Stars
6,575
Forks
392
Last commit
19 hours ago

Fonoster

Open-source cloud communications platform for developers

Stars
6,364
Forks
350
Last commit
7 days ago

Hatchet

Effortless CI/CD for modern cloud applications

Stars
4,256
Forks
159
Last commit
11 hours ago

Nango

Seamless API integrations for modern developers

Stars
4,814
Forks
439
Last commit
9 hours ago

Onlook

Visual React editor with real-time code updates

Stars
3,738
Forks
231
Last commit
3 days ago

Crowd

Empower your open-source community with data-driven insights

Stars
3,292
Forks
752
Last commit
19 hours ago

Komiser

Cloud cost optimization and resource management made simple

Stars
3,975
Forks
432
Last commit
3 days ago

Polar

Open source monetization platform for developers

Stars
3,120
Forks
135
Last commit
15 hours ago

Requestly

Intercept, modify, and debug HTTP(S) requests effortlessly

Stars
2,579
Forks
207
Last commit
16 hours ago

Rivet

Seamless game infrastructure for the modern era

Stars
2,124
Forks
48
Last commit
12 hours ago

Inngest

Effortless event-driven workflows for modern applications

Stars
2,136
Forks
84
Last commit
17 hours ago

Firecamp

Unified API development ecosystem for modern teams

Stars
2,128
Forks
138
Last commit
4 months ago

BoxyHQ

Secure, compliant enterprise features for SaaS products

Stars
1,868
Forks
164
Last commit
17 hours ago

Tailcall

The modern GraphQL runtime

Stars
1,292
Forks
253
Last commit
8 hours ago

Lotus

Open-source billing for modern SaaS companies

Stars
1,724
Forks
126
Last commit
9 months ago

Dyrector

Simplify container deployment across environments

Stars
1,365
Forks
100
Last commit
2 days ago

LostPixel

Visual regression testing made effortless

Stars
1,357
Forks
46
Last commit
7 days ago

WunderGraph

Unify APIs, databases, and services effortlessly

Stars
741
Forks
105
Last commit
14 hours ago

Revert

Seamless API integration for modern developers

Stars
947
Forks
74
Last commit
3 months ago

Artie

Real-time database replication that's efficient and scalable

Stars
601
Forks
29
Last commit
8 hours ago

Streamdal

Code-native data privacy for real-time applications

Stars
584
Forks
16
Last commit
6 days ago

Hook0

Open-source webhooks for seamless integrations

Stars
633
Forks
30
Last commit
24 days ago

Phase

Secure, deploy, and manage application secrets effortlessly

Stars
481
Forks
27
Last commit
2 days ago

Titan

Simplify Snowflake access management with ease

Stars
425
Forks
29
Last commit
5 days ago

Argos

Visual regression testing for seamless UI development

Stars
412
Forks
34
Last commit
9 hours ago

OpenPanel.co

Simplify server management with an intuitive interface

Stars
214
Forks
32
Last commit
13 hours ago

Impler

Seamless data import for your applications

Stars
204
Forks
33
Last commit
18 hours ago

Changes.Page

Effortless changelog creation for open-source projects

Stars
179
Forks
6
Last commit
2 months ago

Werbot

Secure, scalable server access management for DevOps

Stars
118
Forks
6
Last commit
15 days ago

Procaptcha

Decentralized CAPTCHA for enhanced web security

Stars
48
Forks
1
Last commit
20 hours ago

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