Analyzer Tools
Analyze files and content: get metrics, insights and reports for media, text and web assets to guide your decisions.
Audio Tools 5
Audio Compare
Free online audio comparison tool. Compare two audio files using AB testing and statistical analysis. Measure RMS, peak, spectral centroid, rolloff and more. Perfect for audio engineers and producers.
BPM Detector
Free online BPM detector and tempo analyzer. Detect beats per minute (BPM) of any audio file automatically. Includes manual tap tempo feature. Supports all audio formats.
Key Detector
Free online key and pitch detector. Detect musical key, pitch, and notes from audio files. Real-time pitch detection with piano visualization. Perfect for musicians and music producers.
Loudness Meter
Free online audio loudness meter. Measure RMS levels, peak levels, and true peak in real-time. Monitor audio loudness with professional meters. Supports all audio formats.
Spectrum Analyzer
Free online audio spectrum analyzer. Visualize frequency spectrum using FFT, analyze audio in real-time, view waveform and frequency bars. Supports all audio formats.
Color Tools 1
Color Blindness Simulator
Free color blindness simulator. Test how your website or images look to people with protanopia, deuteranopia, tritanopia, and other color vision deficiencies.
Developer Tools 6
DNS/IP Lookup
Free online DNS and IP lookup tool. Check IP address information, geolocation, ISP, hostname, DNS records, and more. Get your public IP instantly. Perfect for network troubleshooting.
JSON Diff Checker
Free online JSON diff checker tool. Compare two JSON objects and see differences highlighted. Find added, removed, and modified values. Perfect for JSON comparison and debugging.
API Request Tester
Free online API request tester tool. Test REST APIs with GET, POST, PUT, DELETE methods. Send custom headers, request body, and view response data. Perfect for API development and testing.
User-Agent Parser
Free online User-Agent parser tool. Parse and analyze User-Agent strings to detect browser, operating system, device type, and platform information. Perfect for web developers and testing.
HTTP Header Viewer
Free online HTTP header viewer tool. Check request and response headers, analyze HTTP status codes, cookies, content type, and more. Perfect for debugging web requests and API testing.
Cron Expression Parser
Free online Cron Expression Parser and explainer. Parse, validate, and understand cron schedule expressions for Linux, Unix, and Quartz with human-readable descriptions and next run times. Perfect for developers and system administrators.
File Tools 4
File Compare
Compare two files online and see differences. Free file comparison tool. Compare text files, binary files. Highlight changes, additions, deletions.
Hash Checker
Calculate file hashes online. Generate MD5, SHA-1, SHA-256, SHA-512 checksums. Free hash calculator tool. Verify file integrity easily.
Metadata Viewer
View file metadata online. Extract EXIF data from images, video info, audio tags, PDF properties. Free metadata viewer tool.
Type Detector
Detect file type by analyzing magic bytes. Find actual MIME type and file extension. Verify file authenticity. Free file type detector.
PDF Tools 1
PDF Compare
Compare two PDF files online. Free PDF comparison tool to check differences in pages, text, size. Fast, secure, works in browser.
Text Tools 4
Character Counter
Count characters, words, spaces, lines, paragraphs, and sentences in your text instantly
Sort Lines
Free online tool to sort text lines alphabetically. Sort A-Z, Z-A, by length, or shuffle randomly. Natural sort for numbers. Remove duplicates.
Text Difference
Compare two texts and find differences between them. A text diff checker highlights additions, deletions, and changes line by line, word by word, or character by character. Perfect for comparing code, documents, or any text content.
Text Extractor
Free online text extractor. Extract emails, URLs, phone numbers, IP addresses from text. Remove duplicates, sort results. Bulk extraction tool.