Format & Validate 6 tools
JSON, XML, YAML, SQL, HTML, CSS — format, validate, minify.
- JSON Formatter
- XML Formatter
- YAML Formatter soon
- SQL Formatter soon
- HTML Beautifier soon
- CSS Beautifier soon
Developer tools, served warm.
Client-side tools for formatting, encoding, networking, and more. No servers, no tracking, no API keys required. Everything runs in your browser.
Live tools
Three tools ready to use right now. More landing weekly.
Client-side only
Every tool runs entirely in your browser. Your data never leaves your device. No logs, no analytics on tool inputs, no server to compromise.
Fast and focused
Each tool does one thing well. Load the page, use the tool, done. No accounts required, no paywall, no email capture.
Actually useful
Built by a developer who uses these tools every day. If a tool exists here, it’s because it solves a real problem — not because it fills a category slot.
Categories
Encode & Decode 5 tools
Base64, URL, HTML entities, JWT, hashes.
- Base64 soon
- URL Encoder soon
- HTML Entities soon
- JWT Decoder soon
- Hash Generator soon
Convert 5 tools
Between data formats, text cases, colors, timestamps.
- JSON ↔ YAML soon
- JSON ↔ CSV soon
- Text Case Converter soon
- Color Converter soon
- Timestamp Converter soon
Network 4 tools
Subnet calculators, CIDR math, IP tools.
- Subnet Calculator
- IPv6 Subnet Calculator soon
- CIDR to IP Range soon
- MAC Address Info soon
Generate 5 tools
UUIDs, lorem ipsum, QR codes, regex, cron.
- UUID Generator soon
- Lorem Ipsum soon
- QR Code soon
- Regex Tester soon
- Cron Builder soon
Oracle 4 tools
SQL formatting, TNS strings, migration helpers.
- Oracle SQL Formatter soon
- TNS Connection String soon
- Oracle to PostgreSQL DDL soon
- SQL*Plus Output Cleanup soon
DevOps 4 tools
Docker compose, Kubernetes YAML, systemd, Nginx.
- Docker Compose Validator soon
- Kubernetes YAML Linter soon
- systemd Unit Builder soon
- Nginx Config Snippets soon
Web/SEO 4 tools
Meta tags, JSON-LD schema, sitemaps, robots.txt.
- Meta Tag Generator soon
- Schema.org JSON-LD soon
- Sitemap XML Generator soon
- robots.txt Tester soon
Frequently asked questions
Is this really free?
Yes. Every tool is free and does not require an account. The site is supported by display advertising in non-intrusive slots outside the tool surfaces.
Do you track what I paste into tools?
No. Every tool runs entirely in your browser — no network request is made with your tool input. We use web analytics for page views only.
Why "codebrulee"?
Crème brûlée, with code instead of custard. The name is a joke; the tools are serious.
Can I use these tools at work?
Yes, including with non-public data. Because everything runs in your browser, pasting internal JSON, IP ranges, or XML payloads does not transmit them. Check your company’s acceptable-use policy, but there is nothing in the tool’s behavior that sends data off your device.
How often do you add new tools?
Regularly. The category list shows every planned tool. Priority goes to tools the site author uses daily — network, SQL, encoding — and to tools with strong search demand.
Is the source code available?
Yes — the site and tool implementations are published. A link is in the footer.
Do you have a tool I need that is not listed?
Email us (contact page). Requests with a clear description of the input, the output, and the use case get prioritized.