Handy tools. Zero uploads.
Every tool runs entirely in your browser. Nothing you open or paste ever touches a server.
📌 Pinned
Developer Toolbox
Everyday utilities for developers
JSON Formatter 📌 Format, validate and minify JSON with clear error messages. Unix Timestamp Converter 📌 Convert Unix timestamps to dates and back, in seconds or milliseconds. Base64 Encode / Decode 📌 Encode and decode Base64 text or convert files to data URIs. JWT Decoder 📌 Decode JWT header and payload without your token leaving the page. Cron Expression Explainer 📌 Paste a cron expression, read it in plain English and see the next run times. Regex Tester 📌 Test regular expressions with live match highlighting, groups and replace. Diff Checker 📌 Compare two texts and highlight changes line by line or word by word. UUID & Hash Generator 📌 Generate UUIDs and compute MD5, SHA-1, SHA-256 or SHA-512 hashes. Command Line Builder
Beta
📌 Paste a long command, edit each flag and value in its own box, copy it back. URL Encoder / Decoder 📌 Percent-encode or decode text and break a URL into editable query parameters. Data Size Converter 📌 Convert bytes, KB, MB, GB and TB, including binary KiB/MiB/GiB. Color Converter & Contrast Checker 📌 Convert hex, RGB and HSL colors and check WCAG contrast between two colors. Text Case Converter 📌 Convert text between camelCase, snake_case, kebab-case, Title Case and more. Number Base Converter 📌 Convert between binary, octal, decimal and hex with exact 64-bit+ precision. QR Code Generator 📌 Make a QR code from text, a link or wifi credentials, as PNG or SVG. Password Generator 📌 Generate strong random passwords and passphrases locally, with an entropy readout. Time Zone Converter 📌 Pick a time in one city and see the local time in others, day shifts included.
File Toolbox
Convert and compress files privately
Image Compressor 📌 Shrink JPG, PNG and WebP images in your browser with a quality slider. HEIC to JPG Converter 📌 Convert iPhone HEIC photos to JPG instantly, no upload needed. Image Resizer 📌 Resize images to exact pixels, a bounding box or a percentage, alone or in batches. EXIF Viewer 📌 See every piece of metadata in a photo, with map links when it carries a GPS location. EXIF Remover 📌 Remove EXIF and other metadata from a photo, including GPS location, right in your browser. PDF Merger 📌 Combine multiple PDFs into one file, reorder pages by drag and drop. PDF Splitter 📌 Extract or remove pages from a PDF, or split every page into its own file. PDF to Image 📌 Render PDF pages as PNG or JPG images and download them as a zip.
3D Printing Toolbox
Calculators and STL utilities for makers
3D Print Cost Calculator 📌 Work out the real cost of a print: filament, electricity, wear and failure rate. Filament Remaining Calculator 📌 Weigh your spool and find out how many grams and meters of filament are left. Scale STL 📌 Resize an STL to exact dimensions or fix inch/mm unit mix-ups. STL Weight Calculator 📌 Drop an STL to get its volume, size and estimated filament weight and cost.
Everyday Toolbox
Handy converters and calculators for daily life
Length Converter 📌 Convert inches, feet, miles, cm, meters and km back and forth. Weight Converter 📌 Convert pounds, ounces and stone to kilograms and grams. Volume Converter 📌 Convert liters, gallons, quarts, pints, cups and fluid ounces. Temperature Converter 📌 Convert Fahrenheit, Celsius, Kelvin and Rankine in any direction. Speed Converter 📌 Convert mph, km/h, m/s, knots and feet per second. Area Converter 📌 Convert square feet, square meters, acres and hectares. Pressure Converter 📌 Convert psi, bar, kPa, atmospheres, mmHg and inches of mercury. Energy Converter 📌 Convert joules, calories, kilowatt hours, BTU and foot-pounds. Power Converter 📌 Convert watts, kilowatts, horsepower, metric PS and BTU per hour. Fuel Economy Converter 📌 Convert mpg (US and UK), km/L and L/100km in any direction. Cooking Converter 📌 Convert cups, tablespoons, teaspoons, ounces and grams, by ingredient. QR Code Generator 📌 Make a QR code from text, a link or wifi credentials, as PNG or SVG. Password Generator 📌 Generate strong random passwords and passphrases locally, with an entropy readout. Date Calculator 📌 Days between two dates, with working days, or add days, weeks and months to a date. Percentage Calculator 📌 What is X% of Y, X is what percent of Y, percent change, and discounts. Recipe Scaler 📌 Halve, double or rescale a whole recipe, with tidy fractions. Time Zone Converter 📌 Pick a time in one city and see the local time in others, day shifts included. Sun & Moon Times 📌 Sunrise, sunset, twilight, moonrise and moonset for any place, shown in its local time.
Photography Toolbox
Plan the light and handle your photos
Image Compressor 📌 Shrink JPG, PNG and WebP images in your browser with a quality slider. HEIC to JPG Converter 📌 Convert iPhone HEIC photos to JPG instantly, no upload needed. Image Resizer 📌 Resize images to exact pixels, a bounding box or a percentage, alone or in batches. EXIF Viewer 📌 See every piece of metadata in a photo, with map links when it carries a GPS location. EXIF Remover 📌 Remove EXIF and other metadata from a photo, including GPS location, right in your browser. Sun & Moon Times 📌 Sunrise, sunset, twilight, moonrise and moonset for any place, shown in its local time.
Why your data stays private
hiptool has no backend and no upload endpoints. Tools are plain JavaScript and WebAssembly in your browser tab; open your network inspector and see for yourself. Most tools work offline once loaded. Read how it works →