Bandwidth Calculator - Download Time Calculator Free (2025)
Instant bandwidth & download time calculator. Calculate how long files take to download at any internet speed (Mbps, Gbp
Open Tool →Tech & Dev Calculators
Developer tools, encoders, converters, and generators
27 tools available
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Base64 Encoder/Decoder | Encode Text & Images (2025)
Convert text, files, and images to Base64. Understand why Base64 increases size by 33%. Perfect for Data URIs, JSON, and
Open Tool →Battery Life Calculator - Estimate Runtime for Any Device (2025)
Free battery life calculator. Estimate how long your battery will last based on capacity (mAh) and consumption (mA). Per
Open Tool →Binary Converter - Text to Binary & Binary to Text (2025)
Free Binary Converter: Convert text to binary (ASCII/UTF-8) and binary to text instantly. Includes 8-bit padding, space
Open Tool →Chmod Calculator - Linux File Permissions Generator (2025)
Free online Chmod Calculator. Generate Linux file permissions (777, 755, 644) in numeric (octal) and symbolic formats. E
Open Tool →Color Converter - HEX to RGB, HSL, RGBA Converter (2025)
Free Color Converter: Convert between HEX, RGB, HSL, and RGBA formats instantly. Includes visual color picker for web de
Open Tool →Cron Generator - Crontab Expression Builder & Scheduler (2025)
Free online Cron Generator. Build and test crontab expressions for Linux/Unix scheduling. Supports standard syntax (minu
Open Tool →CSS Minifier - Free Online CSS Compressor (2025)
Free online CSS Minifier. Compress and optimize your CSS code to reduce file size and boost website loading speed. Remov
Open Tool →Data Transfer Calculator - File Upload & Download Time (2025)
Calculate file transfer time instantly. Estimate how long it takes to upload or download files at various internet speed
Open Tool →Device Pixel Ratio Checker - Screen Density & Resolution (2025)
Instantly check your screen's Device Pixel Ratio (DPR), resolution, and density. Essential tool for responsive web desig
Open Tool →Hex Calculator - Decimal to Hex & Hex to Decimal Converter (2025)
Free Hexadecimal Calculator: Convert decimal to hex and hex to decimal instantly. Supports values 0-FFFFFFFF (4,294,967,
Open Tool →Image Resizer - Free Online Image Resize Tool (2025)
Free online image resizer. Resize photos instantly in your browser. Maintain aspect ratio, batch resize, no upload neede
Open Tool →IP Subnet Calculator - Free CIDR & Netmask Tool (2025)
Free online IP subnet calculator. Calculate network address, broadcast, netmask, CIDR notation, and usable hosts. Essent
Open Tool →JSON Formatter & Validator | Fix Trailing Commas (2025)
Format JSON, detect trailing commas, missing quotes. Validate JSON syntax instantly. Beautify or minify JSON data for AP
Open Tool →Lorem Ipsum Generator - Free Placeholder Text (2025)
Free Lorem Ipsum generator. Create instant placeholder text for mockups, designs, and prototypes. Generate paragraphs, s
Open Tool →Markdown to HTML Converter - Free Online Tool (2025)
Free online Markdown to HTML converter. Instantly convert Markdown syntax to clean HTML code with live preview. Perfect
Open Tool →Meta Tag Generator - Free SEO & HTML Meta Tool (2025)
Free meta tag generator for SEO. Create HTML meta tags including title, description, keywords, Open Graph, and Twitter C
Open Tool →Secure Password Generator | Cryptographically Strong Random Keys (2025)
Create high-entropy, random passwords using cryptographically secure browser-side generation. Professional tool for data
Open Tool →Pixel Density Calculator - Free PPI & DPI Tool (2025)
Free PPI calculator for screens and displays. Calculate pixels per inch (PPI) from resolution and screen size. Perfect f
Open Tool →QR Code Generator | Create Free QR Codes Instantly (2025)
Generate QR codes in seconds for URLs, text, Wi-Fi, whatever you need. Free QR code maker with instant download. No sign
Open Tool →RAID Calculator - Storage Capacity Tool (2025)
Free RAID capacity calculator. Calculate usable storage for RAID 0, 1, 5, 6, and 10. Determine parity overhead and optim
Open Tool →Unix Timestamp Converter - Epoch Time Tool (2025)
Free Unix timestamp converter. Convert epoch time to human-readable dates and vice versa. Supports seconds, milliseconds
Open Tool →URL Encoder/Decoder | Encode Spaces & Special Chars (2025)
Encode URLs: spaces→%20, special chars→%XX. Understand Reserved vs Unreserved characters. Perfect for query strings and
Open Tool →URL Parser - Free URL Component Extractor (2025)
Free online URL parser. Instantly extract protocol, hostname, path, query parameters, and hash from any URL. Perfect for
Open Tool →UUID Generator | Create UUIDs v4 Instantly (2025)
Generate cryptographically random UUIDs (v4). Bulk generator for developers. 340 undecillion possible IDs = practically
Open Tool →Voltage Drop Calculator - Wire Gauge & AWG Tool (2025)
Free voltage drop calculator for electrical circuits. Calculate wire gauge requirements for any distance, current, and v
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