Developer Tools
Collection of free, privacy-focused online utilities designed to boost your productivity. All tools run entirely in your browser—no data ever leaves your device.
Text & Code
Base64 Encoder/Decoder
Convert text or files to and from Base64 encoding format.
JSON Formatter
Beautify, validate, sort keys, or minify JSON data instantly.
JSON Minifier
Quickly strip whitespace to reduce JSON file size.
JSON Tree Viewer
Visualize JSON structure with expandable tree and search functionality.
YAML ⇄ JSON Converter
Convert between YAML and JSON formats with formatting options.
URL Encoder / Decoder
Encode or decode URL components with automatic real-time transformation.
Text & File Diff Checker
Compare two texts or files with line-by-line highlighted differences.
Text to Mindmap
Transform hierarchical text into beautiful, interactive mindmaps with custom layouts and themes.
Utilities
Cron Schedule Generator
Create and understand cron expressions with next execution preview.
PDF Merger
Combine multiple PDF files into one. Reorder pages and merge instantly in your browser.
PDF to Images
Extract all pages from PDF as individual PNG or JPEG images with quality control.
Images to PDF
Convert multiple images into a single PDF document. Drag to reorder pages easily.
YouTube Thumbnail Fetcher
Download YouTube video thumbnails in multiple resolutions instantly.
PDF Annotator
Annotate PDFs with text, images, drawings, and signatures online.
Image Tools
Image Editor
Edit images with color adjustments, creative presets, and special effects.
Image Resizer & Cropper
Resize and crop images to rectangle or circle with manual controls.
Circular Image Cropper
Crop images into perfect circular shape with adjustable radius.
Camera Capture & Crop
Capture photos from your device camera and crop into circles.
Image Compressor
Compress images with quality control and batch processing up to 10 files.
Why Use AppsFactory Developer Tools?
AppsFactory provides a comprehensive suite of free online developer tools designed to streamline your workflow. Whether you're encoding Base64, formatting JSON, editing images, or comparing text files, our tools offer:
- Complete Privacy: All processing happens in your browser—no data is sent to servers
- No Registration Required: Start using tools immediately without creating an account
- Always Free: All tools are completely free with no hidden costs or premium tiers
- Modern Interface: Clean, intuitive design with dark mode support
- Mobile Friendly: Responsive design works perfectly on all devices
- Regular Updates: New tools and features added based on community feedback
Popular Developer Tools
Our most-used tools include the JSON Formatter for beautifying and validating JSON data,Image Resizer for quick image optimization, Base64 Encoder for encoding files,URL Encoder for safe URL parameter encoding, and Text Diff Checker for comparing code changes.
Built for Developers, By Developers
Created by Gorav Singal, AppsFactory is developed with love ❤️ to provide practical utilities that solve real developer problems. Each tool is crafted with attention to detail, performance, and user experience.