Self-hosting is free forever — clone the repo, deploy it yourself, no fees, no limits from us. The hosted cloud (mydevtools.tech) is a paid service.

What is the difference between self-hosting and MyDevTools Cloud?

Self-hosting is the same codebase running on your own infrastructure — you own the data and pay nothing to us. MyDevTools Cloud is our managed service; it is a paid subscription that covers hosting, sync, and backups.

Sensitive data is encrypted in your browser before it reaches the server where supported. The server stores encrypted blobs for vault-style data instead of readable plaintext.

Do I need an account to use the tools?

Google Sign-In is required to save your data across sessions. Many public tool pages can be explored before opening the full app experience.

Is this truly open source?

Yes. Full source code is available on GitHub under the GPL-3.0 license. You can audit, contribute, fork, or self-host it.

Does it work offline?

Many tools are fully client-side and can work without server processing. Tools that connect to external services, sync data, or send API requests need a network connection.

Beta

Get Started

Online developer tools in one browser tab

Free Online Developer Tools
JSON, JWT, Regex & 56+ More

Format JSON, decode JWTs, test APIs, build regexes, generate UUIDs, encode Base64, and use dozens more browser-based developer tools in one open-source toolkit.

Star on GitHub Explore Platform

56+

Online Tools

GPL-3.0

Open Source

Self-host

Free Forever

https://mydevtools.tech/dashboard

MyDevTools dashboard with pinned tools, search, and app grid

Get Started in Seconds

How It Works

From zero to productive in under a minute.

STEP 01

Sign In Instantly

One-click Google Sign-In on our cloud. No email or password friction. Self-hosting is free forever; the hosted cloud is a paid subscription.

STEP 02

Pick Your Tool

Choose from 56 tools in one unified dashboard. Everything in a single tab.

STEP 03

Work Privately

Data is AES-256 encrypted in your browser before sync. The server never sees your plaintext.

Built for Modern Developers

Real tools, real previews — speed and privacy by default.

Lightning Fast

Format & validate in milliseconds

JSON, SQL, Markdown — formatters and editors that run entirely in your browser. No round-trips, no copy-paste detours.

payload.json

{
  "name": "mydevtools",
  "tools": 56,
  "encrypted": true,
  "open_source": true
}

Explore JSON Formatter

Secure & Private

Zero-knowledge vault

github.com••••••••

vercel.com••••••••

anthropic.com••••••••

Developer First

Test endpoints in one tab

GET/api/v1/users 200

{ "id": 42, "ok": true }

Pricing

Self-host free. Cloud is paid.

Same open-source product everywhere. Run it yourself at no cost, or let us handle hosting with a paid subscription.

Self-hosted

$0 forever

Clone the repo, deploy the web app and backend, and use every tool with no license fee and no usage limits from us.

Full source under GPL-3.0
All tools and features included
You control data & infrastructure

View on GitHub

Paid

MyDevTools Cloud

Subscription

Managed hosting with secure sync and backups.

We run the infrastructure so you do not have to. Your sensitive data stays encrypted before sync; plaintext stays in your browser.

Same product, zero deploy hassle
Secure sync and backups from us
Cancel any time

Get Started

Coming soon

Premium

Add-ons

Optional paid capabilities on top of Cloud for teams, advanced workflows, and managed collaboration. Self-hosting remains fully capable for individual developers.

Advanced workflows for power users
Team-oriented collaboration features
Self-host remains fully capable

56+ Tools, One Dashboard

From JSON formatters to API clients, generators, and database explorers — everything you need in one online developer toolkit.

Browse all tools

Developer tools platform Product features Security and privacy Self-host MyDevTools

JSON Formatter

Format, validate, and edit JSON data.

JWT Decoder

Decode JWT header, payload, and expiry.

API Client

Test and debug HTTP requests.

Regex Tester

Test regex with live match highlighting.

UUID / ULID

Generate UUIDs and ULIDs with bulk export.

Base64 Encoder

Encode and decode Base64 strings.

Hash Generator

MD5, SHA-1, SHA-256/384/512 digests for text or files in your browser.

URL Parser

Break a URL into protocol, host, path, query params, and hash.

Timestamp Converter

Unix, ISO, and relative time conversion.

Cron Builder

Visual cron builder, presets, and parser.

Mock Data Generator

Define a schema and export random JSON, CSV, SQL, or XML for dev and API testing.

Docker Compose Generator

Compose local stacks: Postgres, Redis, NGINX, Kafka, Elasticsearch, Prometheus, Grafana, and many more — copy docker-compose.yml.

See all 56 tools

Built on Trust Signals Developers Can Verify

Open-source code, public community proof, self-hosting, and browser-side encryption instead of vague promises.

100% Open Source

GPL-3.0 licensed. Full source on GitHub so developers can inspect the code, contribute features, fork, or self-host.