Top Tools
A curated set of the most practical tools on tool.tl for common PDF, image, metadata, and text tasks.
Most Used Right Now
This section updates automatically based on real completed tool actions on the site.
GIF Frame Extractor Extract individual frames from animated GIF images. 7d 14
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Used 144 times Port Scanner Free online port scanner. Check open ports on any host or IP address. Detect exposed services and potential security vulnerabilities. 7d 8
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Used 50 times Checksum Calculator Calculate CRC16 (MODBUS, CCITT, IBM) and 8/16-bit checksum for ASCII text or HEX bytes. Used for serial communication, protocol verification. 7d 7
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Used 31 times QR Code Decoder Decode QR codes from uploaded images and copy the result. 7d 6
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Used 21 times Loan Amortization Calculator Calculate loan amortization schedule with monthly payment, total interest, and full payment breakdown. Supports extra payments. 7d 5
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Used 137 times Password Generator Generate secure random passwords with customizable options. 7d 5
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Used 53 times Salary After Tax Calculator Calculate your US salary after federal income tax, Social Security, Medicare, and state taxes. Shows monthly, bi-weekly, and hourly take-home pay. 7d 4
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Used 120 times LTV Calculator Calculate Customer Lifetime Value (LTV), CAC, LTV:CAC ratio, and payback period for your SaaS or subscription business. 7d 4
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Used 86 times BMI Calculator Calculate your BMI and daily calorie needs (TDEE). Includes healthy weight range, Mifflin-St Jeor BMR formula, and macro breakdown. 7d 4
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Used 53 times TOTP Token Generator Generate time-based one-time password (TOTP) codes. 7d 3
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Used 129 times UUID Generator Free online UUID generator. Generate RFC 4122 compliant UUID v4 and v7 identifiers instantly. Batch generation and one-click copy supported. 7d 3
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Used 126 times Car Insurance Calculator Estimate your car insurance premium based on vehicle value, driver age, driving record, state, and coverage type. For educational purposes. 7d 3
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Used 85 times
Best Places to Start
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Compress PDF Free online PDF compressor. Reduce PDF file size by up to 80% while maintaining quality. Fast, secure, no signup needed. PDF to Word Free online PDF to Word converter. Convert PDF to editable DOCX with formatting preserved. No installation or signup required. Chinese to Pinyin Free online Chinese to Pinyin converter. Convert Hanzi to Pinyin with tone marks or numbers. Supports Simplified and Traditional Chinese. EXIF Viewer Free online EXIF viewer. Read EXIF metadata from JPG, PNG, and TIFF photos. View camera settings, GPS location, timestamp, and more. ICO to PNG JPG Convert favicon.ico to PNG or JPG. Extract all sizes from an ICO file and download individually or as a ZIP. JPG to PDF Free online JPG to PDF converter. Convert and merge multiple images into one PDF. Drag-and-drop reordering, no watermark, no signup.