Free Online Developer Tools
Fast, free, and privacy-first. All tools run entirely in your browser — no data is ever sent to a server. No signup required.
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting and error detection.
Base64 Encoder & Decoder
Convert text to Base64 or decode Base64 strings. Supports UTF-8 encoding.
URL Encoder & Decoder
Encode special characters for URLs or decode percent-encoded strings.
UUID Generator
Generate random UUIDs (v1 and v4) with single or bulk generation options.
Lorem Ipsum Generator
Generate placeholder text as paragraphs, sentences, or words with HTML export.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly.
HTML Entity Encoder
Encode and decode HTML entities with a built-in reference table.
CSS Beautifier & Minifier
Format messy CSS with proper indentation or compress it for production.
HTML Beautifier & Minifier
Format or compress HTML code with tag counting and multiple indent options.
SQL Formatter
Beautify SQL queries with keyword uppercasing, indentation, and minify support.
Why Codeutil?
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Privacy First
All tools process data locally in your browser. Nothing is sent to any server.
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Instant Results
No loading screens, no server round-trips. Results appear in milliseconds.
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100% Free
No signup, no usage limits, no premium tiers. Every tool is completely free.