⚡ StackUtils

⚡StackUtils — Privacy-First Developer Toolbox & Web Utilities

Free, open-source, privacy-first developer toolbox. Privacy-first developer toolbox for JSON, API, Go, SQL, Docker, crypto, network, text, and web utilities. Runs 100% locally in your browser.

Search 134 developer tools...Ctrl+K

Popular Tools

UUID Generator

Runs locally

Generate UUID values.

Crypto

Token Generator

Runs locally

Generate random secure tokens with configurable length and charset.

Crypto

Base64 String Converter

Runs locally

Encode and decode Base64 strings.

Converter

Categories

Crypto

11

Hashing, encryption, token generation, and key management.

Converter

20

Format conversion between JSON, YAML, TOML, XML, Base64, and more.

Web

16

URL tools, JWT parser, meta tags, HTTP status codes, and web utilities.

Images and videos

4

QR codes, SVG placeholders, camera recording.

Development

14

JSON tools, SQL formatting, regex testing, cron, and developer references.

Network

6

IPv4/IPv6 calculators, MAC address tools, subnet utilities.

Math

3

Math evaluator, percentage calculator, ETA calculator.

Measurement

3

Temperature conversion, chronometer, benchmark builder.

Text

7

Text statistics, diff, Lorem Ipsum, emoji picker, ASCII art.

Data

2

Phone number parser, IBAN validator.

Backend & Golang

18

JSON to Go struct, TypeScript interfaces, cURL conversion, .env tools.

DevOps

5

Docker, Kubernetes, Nginx, rate limiting, payload size tools.

SEO & Web Diagnostics

11

UTM builder, robots.txt, CSP, CORS, SSL checker, and more.

Network Diagnostics

4

DNS lookup, WHOIS, ping, port checker.

AI Tools

6

AI-assisted code generation, regex explanation, log analysis.

Product Platform

4

Sharing, accounts, billing, API access.

🔒

Privacy-first by design

Most tools run entirely in your browser. Your input stays on your machine and is never sent to a server. Tools that require a backend are clearly labeled.