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86 tools found
Average Calculator
Enter a list of numbers and instantly see the average, sum, count, median, mode, minimum, maximum, and range.
Weighted Average Calculator
Enter values and weights and instantly see the weighted average, weight sum, product sum, contributions, and calculation steps.
Discount Calculator
Calculate original price, discount, savings, and final price from any two values directly in your browser.
Multiple Discount Calculator
Apply multiple percentage and fixed discounts in sequence with final price, savings, effective discount, and every intermediate step.
Tip Calculator
Calculate tip, total, and exact per-person split from a percentage, fixed amount, or target total.
Ratio Calculator
Enter a ratio and instantly simplify, normalize, scale, or split a total.
Rule of Three Calculator
Enter three values and instantly solve for the fourth using direct or inverse proportion, with a clear calculation path.
Percentage Change Calculator
Calculate the starting value, final value, and percentage change directly in your browser. Increases, decreases, and reverse calculations work without switching modes.
Percentage Calculator
Calculate percentages, parts, whole values, adjustments, and percentage changes instantly in your browser.
Convert PNG to AVIF
Convert static PNG files to AVIF locally in your browser with quality control, lossless mode, and transparency.
JPG to PNG Converter
Convert JPG and JPEG files to PNG files for single images or small batches.
PNG to JPG Converter
Convert PNG files to JPG files. Transparent pixels are flattened against white.
JPG to WebP Converter
Convert JPG and JPEG files to WebP with quality control and batch processing.
PNG to WebP Converter
Convert PNG files to WebP. Transparency is preserved when supported by the browser encoder.
JPG to AVIF Converter
Convert JPG and JPEG files to AVIF when browser AVIF encoding is supported.
WebP to AVIF Converter
Convert static WebP files to AVIF when browser AVIF encoding is supported.
AVIF to PNG Converter
Convert static AVIF files to PNG using browser decoding.
AVIF to JPG Converter
Convert static AVIF files to JPG using browser decoding.
AVIF to WebP Converter
Convert static AVIF files to WebP using browser decoding.
BMP to WebP Converter
Convert BMP files to WebP using browser decoding.
Resize & Crop Image
Crop, resize, and export images as JPG, PNG, or WebP locally in your browser.
GIF to WebP Converter
Convert static and animated GIF files to WebP locally in your browser.
TIFF to WebP Converter
Convert single-page and multi-page TIFF files to WebP locally in your browser.
Extract images from PDF
Extract embedded images from PDFs locally, preview them, and download as PNG or JPEG.
PDF to Images
Convert PDF pages locally without uploads to JPG, PNG or WebP images.
Compress PDF
Reduce PDF file sizes locally in your browser with no upload and clear quality controls.
Encrypt PDF
Protect PDF files directly in your browser with AES-256 encryption, no upload, and optional permissions.
Unlock PDF
Remove known PDF password protection directly in your browser with no upload and batch processing.
PDF to Word/OpenDocument
Convert PDF directly in your browser to DOCX or ODT. Editable text or page-faithful output, no upload.
PDF to Excel
Detect PDF tables locally and export them as a macro-free Excel workbook.
PDF to PowerPoint
Export PDF pages locally as PowerPoint slides - without uploads and offline after preparation.
Rotate PDF Pages
Rotate PDF pages locally in your browser by rules, left, right, or 180 degrees.
Delete PDF Pages
Delete pages from one or more PDF files locally in your browser and create new PDFs.
Merge PDF
Merge multiple PDF files locally in your browser into one new PDF using a custom order.
Overlay PDF
Place letterhead, logos, or other PDF layers in front of or behind PDF pages.
Split PDF
Split PDF files locally in the browser by pages, groups, halves, selection, or target size.
Length Converter
Enter one length and instantly convert it to metres, inches, feet, miles, nautical miles, and astronomical units.
Area Converter
Enter one area and instantly convert it to square metres, hectares, acres, square feet, and other common units.
Volume Converter
Enter one volume and instantly convert it to litres, cubic metres, US gallons, Imperial gallons, and other common units.
Speed Converter
Enter one speed and instantly convert it to km/h, m/s, mph, knots, and other common units.
Running Pace Converter
Convert running pace and speed between min/km, min/mi, km/h, mph, and constant-pace finish times for standard distances.
Data Size Converter
Instantly convert data sizes between bits, bytes, MB, GB, MiB, GiB, and other SI and IEC units.
Data Transfer Rate Converter
Instantly convert data transfer rates between bit/s, Mbit/s, Gbit/s, B/s, MB/s, MiB/s and other SI and IEC rates.
Time Converter
Instantly convert durations between seconds, minutes, hours, days, weeks, and explicitly defined month and year units.
Time Zone Converter
Convert dates and times locally between IANA time zones such as UTC, Berlin, London, New York and Tokyo.
Pressure Converter
Instantly convert pressure between pascals, kPa, MPa, bar, psi, atmospheres, torr, mercury and water-column units.
Energy Converter
Instantly convert energy between joules, kilojoules, kWh, calories, BTUs, therms, electronvolts and more.
Power Converter
Instantly convert power between watts, kilowatts, megawatts, metric and mechanical horsepower, BTU and refrigeration units.
Angle Converter
Instantly convert angles between degrees, radians, gradians, arcminutes, arcseconds, turns, milliradians, and NATO mils.
Fuel Consumption Converter
Instantly convert fuel consumption between L/100 km, km/L, US MPG, Imperial MPG, and other international units.
Cooking and Baking Converter
Convert cooking and baking measures between cups, millilitres, teaspoons, tablespoons, grams, ounces, and pounds, with ingredient-specific cup-to-gram values.
Frequency Converter
Instantly convert frequency between hertz, kilohertz, megahertz, gigahertz, RPM, BPM, and radians per second.
Density Converter
Instantly convert density values between kg/m³, g/cm³, g/mL, kg/L, lb/ft³, lb/in³, and US and Imperial gallon units.
Force Converter
Instantly convert force between newtons, kilonewtons, kilogram-force, pound-force, kip, dyne, poundal and ton-force systems.
Torque Converter
Instantly convert torque between N·m, N·cm, N·mm, kgf·m, kgf·cm, lbf·ft, lbf·in, ozf·in and dyn·cm.
Flow Rate Converter
Instantly convert volumetric flow rates between L/min, m³/h, US gal/min, Imp gal/min, ft³/min and US oil barrels per day.
Acceleration Converter
Instantly convert acceleration between m/s², g₀, Gal, ft/s², km/h/s, mph/s, kn/s and other units.
Shoe Size Converter
Compare shoe sizes between EU, UK, US men, US women, kids, Mondopoint and measured foot length.
Weight Converter
Enter one weight and instantly convert it to kilograms, grams, pounds, ounces, stones, tons, and troy and carat units.
Temperature Converter
Instantly convert temperatures between Celsius, Fahrenheit, kelvin, Rankine, and four historical scales.
Roman Numeral Converter
Convert decimal numbers from 1 to 3999 and modern canonical Roman numerals bidirectionally in your browser.
Hex / Decimal / Binary / Octal Converter
Convert numbers exactly between hexadecimal, decimal, binary, and octal.
Cron Expression Descriptor
Explain, validate, and preview upcoming run times for cron expressions locally.
RegEx Tester
Test JavaScript regular expressions locally, inspect matches and capture groups, and preview replacements.
URL Decoder
Decode percent-encoded URL components, paths, query strings, and form data locally.
URL Encoder
Percent-encode text, paths, query values, and form data locally in the browser.
JWT Decoder
Decode JWTs locally, inspect claims, and optionally verify HMAC signatures in the browser.
UUID / GUID Generator
Generate UUIDs and GUIDs locally in the browser, export batches, and use v4 or v7.
JSON Formatter
Validate, format, minify, analyze, and inspect JSON as a tree locally.
JSONPath Query Evaluator
Run RFC 9535 JSONPath queries locally against JSON and show normalized paths.
JMESPath Evaluator
Run JMESPath Core expressions locally against JSON and export the JSON result.
XPath Tester / Playground
Test XPath 1.0 in the browser and XPath 3.1 locally against XML or HTML documents.
Base64 Decoder
Decode Base64, Base64URL, MIME Base64, or data URLs to bytes directly in the browser.
Base64 Encoder
Encode text or local files to Base64, Base64URL, MIME Base64, or data URLs directly in the browser.
JSON to XML
Convert JSON files or pasted JSON text to XML directly in the browser.
XML to JSON
Convert XML files or pasted XML text to JSON directly in the browser.
JSON to YAML
Convert JSON files or pasted JSON text to YAML directly in the browser.
YAML to JSON
Convert YAML files or pasted YAML text to JSON directly in the browser.
bcrypt / MD5 / SHA-256 Generator
Generate and verify bcrypt password hashes and calculate MD5 and SHA-256 digests locally.
CSV to Markdown Table
Convert CSV, TSV, and delimiter-separated data to GitHub-Flavored Markdown tables locally in the browser.
JSON to TOML
Convert strict JSON to readable TOML locally in the browser.
JSON to TypeScript Interface
Infer TypeScript interfaces and type aliases from JSON sample data locally in the browser.
SQL Formatter
Format and beautify SQL scripts locally in the browser.
JSON to SQL INSERT
Convert JSON objects and object lists to SQL INSERT statements directly in the browser.
CSV to JSON
Convert CSV, TSV files, or pasted table data to JSON directly in the browser.
JSON to CSV
Convert JSON files or pasted JSON text to CSV directly in the browser.