Free Developer Tools
Essential online utilities for developers. Fast, secure, and completely free. All tools run locally in your browser.
Fast & Lightweight
No installation required. All tools load instantly and run in your browser.
Private & Secure
Your data never leaves your device. Everything is processed locally.
Always Free
No limits, no sign-up, no tracking. Just tools that work.
Featured Tools
View All →PDF Merge & Split
Merge multiple PDF files into one or split a PDF into separate files by page range. Free, private, and runs entirely in your browser — no uploads.
conversionBase64 Encoder & Decoder
Encode and decode Base64 strings online. Free Base64 converter with UTF-8 support, file encoding, and instant conversion for developers.
encodingColor Converter (HEX, RGB, HSL)
Convert colors between HEX, RGB, HSL, and HSV formats. Free color converter with live preview, copy to clipboard, and color picker.
conversionHash Generator (SHA-256, SHA-1, SHA-512)
Generate cryptographic hashes online. Free hash generator supporting SHA-1, SHA-256, SHA-384, and SHA-512 for checksums and data integrity.
securityJSON Formatter & Validator
Format, validate, and beautify JSON data online. Free JSON formatter with syntax highlighting, error detection, and multiple formatting options.
formattingJWT Decoder & Inspector
Decode and inspect JSON Web Tokens (JWT) online. Free JWT decoder showing header, payload, and signature with validation and Base64 decoding.
securityAll Tools
Images to PDF Converter
Combine PNG and JPEG images into a single PDF. Reorder, set page size, orientation, and margins. Runs in your browser — no uploads, no sign-up.
conversionPDF Merge & Split
Merge multiple PDF files into one or split a PDF into separate files by page range. Free, private, and runs entirely in your browser — no uploads.
conversionPDF Page Organizer
Rotate, reorder, and delete pages in a PDF with live thumbnails. Drag-free interface with keyboard-accessible controls. Runs in your browser, no uploads.
conversionPDF to Images Converter
Convert PDF pages to PNG, JPEG, or WebP images in your browser. Pick page ranges, output format, and resolution. No uploads, no sign-up, free.
conversionBase64 Encoder & Decoder
Encode and decode Base64 strings online. Free Base64 converter with UTF-8 support, file encoding, and instant conversion for developers.
encodingColor Converter (HEX, RGB, HSL)
Convert colors between HEX, RGB, HSL, and HSV formats. Free color converter with live preview, copy to clipboard, and color picker.
conversionHash Generator (SHA-256, SHA-1, SHA-512)
Generate cryptographic hashes online. Free hash generator supporting SHA-1, SHA-256, SHA-384, and SHA-512 for checksums and data integrity.
securityJSON Formatter & Validator
Format, validate, and beautify JSON data online. Free JSON formatter with syntax highlighting, error detection, and multiple formatting options.
formattingJWT Decoder & Inspector
Decode and inspect JSON Web Tokens (JWT) online. Free JWT decoder showing header, payload, and signature with validation and Base64 decoding.
securityUnix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Free timestamp converter with ISO 8601, local time, and UTC support.
conversionURL Encoder & Decoder
Encode and decode URL strings online. Free URL converter with component and full URL encoding, perfect for query parameters and API development.
encodingUUID Generator (v4)
Generate random UUIDs (Universally Unique Identifiers) online. Free UUID v4 generator with bulk generation and one-click copying.
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