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AC Motor Synchronous Speed Calculator AC Motor Slip Calculator 3-Phase AC Motor Line Current Calculator Displacement Power Factor (cos φ) Calculator BLDC Kv to No-Load RPM Calculator LiPo C-Rate Max Discharge Current Calculator Drone Flight Time Estimator Motor Winding Resistance Voltage Drop Torque from Power and RPM Calculator Gearbox Output Torque Calculator Motor Joule Heating (I²R) Calculator Drone Thrust-to-Weight Ratio Calculator Motor Kv Change from Turn Count Calculator BLDC Torque Constant (Kt) from Kv Stator Slot Copper Fill Factor Calculator Task Reminder Time-Lapse Storage Calculator Vertical Framing Safe-Zone Guide DPI-to-Pixel Print Guide Metadata (EXIF) Viewer & Scrubber

Tool Categories

Everything you need, organized by purpose

Image Tools

Compress, resize, convert, and optimize images in your browser.

40 tools
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PDF Tools

Merge, split, compress, and convert PDF files effortlessly.

9 tools
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Text Tools

Analyze, transform, and format text for any purpose.

46 tools
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Developer Tools

Essential utilities for developers: formatters, encoders, and more.

38 tools
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SEO Tools

Optimize your website for search engines and social media.

9 tools
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Finance Tools

Tax, savings, and financial planning calculators for India and global users.

91 tools
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Online Calculator

Scientific and engineering calculator with natural expression entry, angle modes, logs, powers, memory, and Ans.

2 tools
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Compliance & Legal

Compliance and legal drafting helpers for privacy, consent, and business operations.

8 tools
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Health & Fitness Tools

Health and fitness estimators for nutrition, metabolism, and body metrics.

12 tools
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Math Tools

Probability, statistics, and number theory calculators for everyday math.

8 tools
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Network Tools

IP utilities, traceroute maps, and data-center planning calculators (PUE, cooling, rack heat, CFM).

42 tools
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Audio Tools

Audio calculators, converters, synthesis generators, and browser-based analysis utilities.

42 tools
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Practical Life Tools

Everyday household and practical planning calculators for day-to-day life.

3 tools
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Science & Weather Tools

Electricity, weather, psychrometrics (wet bulb / dew point / heat index), cooling towers, AQI, and a simple carbon footprint.

31 tools
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Photography Tools

Interactive calculators for exposure, cinema workflow, pricing, print planning, and metadata privacy.

12 tools
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Specialty Calculators

Long-tail calculators: construction, electrical, medical, HR, games, hobbies, commerce, and niche converters.

281 tools
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Popular Tools

The tools people use most

Image Tools

Image Compressor

Compress JPEG, PNG, and WebP images instantly in your browser. Reduce file size by up to 90% while m…

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PDF Tools

Compress PDF

Shrink PDF file size locally. Smart mode recompresses embedded JPEGs while keeping text and vectors;…

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PDF Tools

PDF Merger

Merge multiple PDF files into one document using pdf-lib, entirely in your browser. Optional metadat…

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PDF Tools

PDF Splitter

Split a PDF into multiple files by page ranges. Page count is read locally first; splitting uses pdf…

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PDF Tools

Multipage PDF to Image

Convert every page of a PDF to high-resolution images in your browser. PDF.js renders each page sequ…

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PDF Tools

Markdown to PDF & DOCX

Convert Markdown to styled PDF and Word documents: themes, table of contents, syntax-highlighted cod…

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Blazing Fast

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Always Free

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Mobile Friendly

Every tool works perfectly on phones and tablets, not just desktops.

No Signup Required

Open a tool and use it immediately. No accounts, no emails, no tracking.

Modular & Growing

New tools added regularly. Built for scalability from day one.