JSON Formatter
Format and compare JSON, preserve large numeric IDs, and download a path-by-path change report.
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LESS FRICTION. MORE DOING.
Always freeInspect data. Prepare files. Check the result.
A browser workspace for people working with JSON, text, images, and short videos, with everyday calculators alongside.
FROM INPUT TO A CHECKED OUTPUTKnow what changed.
Know what changed.
Keep what matters.
Compare API responses without rounding numeric IDs, prepare an image for your website, and verify the output with a reproducible example.
Compare JSON No sign-up No installs Just answers
Choose the output you need
API & CONFIGURATION
Find what changed in JSON
Compare two documents by path, preserve numeric IDs, and download a report that distinguishes type changes from missing fields.
Compare JSON →WEBSITE FILESPrepare a smaller website image
Choose dimensions for its display space, compare actual JPEG, PNG, and WebP sizes, and inspect the detail before saving.
Follow the image workflow →TEXT & ENCODINGCheck a Base64 round trip
Keep Unicode text and whitespace intact, check the expected bytes, and recognize when the destination needs a different alphabet.
Verify encoded text →Quick convertA shortcut for the small stuff
Find your next go-to.
Little problem? There’s a tool for that.
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30 tools, ready when you are
JSON Validator
Check whether your JSON is valid and see exactly where errors occur.
Image Size Reducer
Adjust image quality and dimensions, then compare actual file sizes before saving.
Image Converter
Convert JPEG, PNG and WebP images with a preview and optional resizing.
Base64 Decoder
Decode Base64 strings back into readable text.
Base64 Encoder
Encode text or data into Base64 format.
Word Counter
Count words, characters, sentences and paragraphs in your text.
Video Size Reducer
Reduce a short video with resolution and bitrate controls, using browser-supported formats.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back, and get the current timestamp.
Length Converter
Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.
Age Calculator
Find your exact age in years, months and days from your date of birth.
Date Difference Calculator
Calculate the exact number of years, months and days between two dates.
Days Between Dates
Count the exact number of days between two calendar dates.
EMI Calculator
Calculate your monthly loan installment (EMI), total interest and total payment.
SIP Calculator
Estimate the future value of your monthly SIP investments.
GST Calculator
Add or remove GST from an amount at any tax slab.
Discount Calculator
Find the sale price and amount saved after a percentage discount.
Compound Interest Calculator
Calculate how your investment grows with compound interest over time.
BMI Calculator
Calculate adult BMI for ages 20 and over, with screening categories and limitations.
Percentage Calculator
Calculate percentages, percentage change, and what percent one number is of another.
Weight Converter
Convert between milligrams, grams, kilograms, tonnes, ounces, pounds and stones.
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin instantly.
Area Converter
Convert between square meters, square feet, acres, hectares and more.
Volume Converter
Convert between milliliters, liters, cups, pints, quarts and gallons.
Speed Converter
Convert between km/h, mph, m/s, knots and feet per second.
File Size Converter
Convert between bits, bytes, KB, MB, GB, TB, and binary KiB/MiB/GiB/TiB.
Time Zone Converter
Convert a time from one time zone to another.
UUID Generator
Generate random UUID v4 identifiers in bulk.
Character Counter
Count characters with and without spaces in your text.
QR Code Generator
Generate QR codes for URLs, text, email, phone, WiFi and WhatsApp, and download as PNG.
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See the method. Check the result.
Our practical guides follow complete tasks with sample inputs, screenshots, measured outputs, and common mistakes. Start with a walkthrough, then try the same checks with your own data.
Developer
Browse all 7 practical guides →Format JSON without changing large numeric IDs
Make an API response readable while keeping the exact number text you received.
Read walkthrough DeveloperFix JSON errors one correction at a time
Use the detected location to repair a document without guessing at changes to its data.
Read walkthrough Image & videoReduce a website image and compare the real outputs
Choose dimensions first, then compare formats using the actual file size and the details that need to stay readable.
Read walkthrough ConversionsConvert height without confusing decimal feet and inches
Read the receiving form's units before entering a height: the decimal part of a foot is not an inch count.
Read walkthrough Private by design. Useful by nature.Built for the things you do every day.