🛠️Welcome to Utilbox
Free online developer tools. No signup required.
🔥Highlighted Tools
🧪API Testing(1)
🔐Encoders/Decoders(3)
💻Development(10)
Regex Tester
Test and validate regular expressions in real-time
UUID Generator
Generate unique identifiers (UUID v1 and v4) with batch support
Password Generator
Generate secure random passwords with customizable length and character sets
Hash Generator
Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-384, SHA-512) with HMAC support
HMAC Generator
Generate HMAC signatures with SHA-1, SHA-256, SHA-384, and SHA-512 algorithms
Bcrypt Hash
Generate and verify bcrypt password hashes with configurable salt rounds (4-15)
Cron Expression Builder
Build, parse, and translate cron expressions into human-readable text
Webhook Tester
Capture and inspect real-time HTTP requests, payloads, and headers for webhooks
Test File Generator
Generate various test files (data, media, docs, edge cases) for QA testing
JSON to Code
Convert JSON objects into types, interfaces, and structs for multiple languages
📋Formatters(3)
🖼️Image Tools(6)
Image Compressor
Compress PNG, JPEG, and WebP images with quality controls
Image Resizer
Resize images with custom dimensions and presets
Placeholder Generator
Generate SVG and PNG placeholders with custom colors and labels
Animal Placeholder
Generate animal photo placeholder URLs and random animal data for mockups and testing
Image Converter
Convert PNG, JPEG, and WebP images with format and quality controls
Favicon Generator
Generate common favicon PNG sizes for websites and PWAs
📝Text Tools(7)
Share Text
Share encrypted text with end-to-end encryption and auto-expiration
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE
Markdown Live Preview
Write Markdown and preview the rendered output live in your browser
Text Schema Synthesizer
Turn messy text into structured JSON or CSV using AI — coming soon
OmniExtract AI
Extract structured data from documents (PDF, images) using AI.
Temp Chat
Temporary chat rooms
Text Diff
Compare text differences with side-by-side and unified views
🔄Converters(6)
XML ↔ JSON Converter
Convert between XML and JSON formats
YAML Converter
Convert between YAML and JSON formats
Multi-Timezone Converter
Convert a specific time into multiple timezones simultaneously
Timestamp Converter
Convert timestamps between formats
Currency Converter
Convert between currencies with real-time exchange rates
Color Converter
Convert between HEX, RGB, HSL, and HSV color formats