Simple tools for
everyday problems.
Fast, private, browser-based utilities for developers, creators, and everyday work. Zero accounts, zero tracking, zero server uploads.
Popular Tools
Frequently accessed developer, image, text, and calendar utilities
JSON → Dart
Convert JSON payloads into clean, type-safe Dart classes for Flutter and Dart projects.
JSON Diff
Compare two JSON documents side-by-side with color-coded additions, deletions, and modifications.
JWT Decoder
Decode JSON Web Tokens locally to inspect headers, payload claims, and token expiration.
Regex Tester
Test and debug regular expressions with real-time match highlighting and capture group breakdown.
Text Cleaner
Remove duplicate lines, extra spaces, line breaks, invisible characters, and normalize typography.
Text Diff
Compare two text documents side-by-side or inline to highlight additions, deletions, and inline modifications.
Image Compressor
Compress JPG, PNG, and WebP images locally with customizable quality controls and immediate file size savings.
QR Generator
Create customizable QR codes for text, URLs, emails, phone numbers, and Wi-Fi networks with PNG/SVG downloads.
BS ↔ AD Converter
Accurate Bikram Sambat (BS) to Gregorian (AD) calendar converter with Nepali weekday and month names.
Nepali Number Converter
Convert English numbers into Nepali Devanagari numerals and written Nepali words (Lakh, Crore, Arba).
Nepal Salary & Tax Calculator
Calculate salary tax, monthly TDS, take-home pay, and IRD progressive tax slabs for FY 2080/81 and 2081/82.
Dice Roller
Roll single or multiple polyhedral dice (D4 to D100) with visual faces, roll history, and statistical roll summaries.
Coin Flip
Flip single or batch coins with animated 3D coin flips, streak counters, and heads/tails probability statistics.
Developer Tools
Code generators, diff checkers, parsers, and token decoders. (9 tools)
JSON → Dart
Convert JSON payloads into clean, type-safe Dart classes for Flutter and Dart projects.
JSON Diff
Compare two JSON documents side-by-side with color-coded additions, deletions, and modifications.
JWT Decoder
Decode JSON Web Tokens locally to inspect headers, payload claims, and token expiration.
Regex Tester
Test and debug regular expressions with real-time match highlighting and capture group breakdown.
API Response Diff
Compare two API responses (JSON or raw text) to spot breaking changes and field updates.
cURL Converter
Convert cURL commands into JavaScript fetch, Axios, Python requests, Dart Dio, Kotlin, Swift, and Java.
Cron Builder
Build cron expressions visually and translate them into human-readable schedules with next run times.
Text Tools
Formatters, cleaners, counters, case converters, and diff utilities. (9 tools)
Text Cleaner
Remove duplicate lines, extra spaces, line breaks, invisible characters, and normalize typography.
Case Converter
Transform text into UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, and kebab-case.
Word Counter
Calculate words, characters, sentences, paragraphs, reading time, and speaking time in real time.
Duplicate Finder
Detect duplicate lines or repeated words in your text with frequency counts and unique filtering.
Markdown Tool
Live Markdown editor and previewer with support for GitHub-flavored tables, task lists, and HTML export.
Text Diff
Compare two text documents side-by-side or inline to highlight additions, deletions, and inline modifications.
Lorem Generator
Generate classic Lorem Ipsum placeholder text by words, sentences, or paragraphs with copy-ready options.
Image Tools
Client-side image compression, resizing, cropping, and QR generator. (6 tools)
Image Compressor
Compress JPG, PNG, and WebP images locally with customizable quality controls and immediate file size savings.
Image Resizer
Resize images by exact pixel dimensions or percentage scaling with aspect ratio locking.
Image Cropper
Crop photos with freeform or fixed aspect ratios (1:1, 16:9, 4:3) and rotate or flip orientation.
Color Palette Extractor
Extract dominant color palettes from any uploaded picture with HEX, RGB, and HSL copy buttons.
Nepal Tools
Bikram Sambat converter, Nepali numbers, Unicode fonts, and festival calendars. (7 tools)
BS ↔ AD Converter
Accurate Bikram Sambat (BS) to Gregorian (AD) calendar converter with Nepali weekday and month names.
Nepali Number Converter
Convert English numbers into Nepali Devanagari numerals and written Nepali words (Lakh, Crore, Arba).
Nepali Unicode Tool
Convert legacy fonts like Preeti to modern Nepali Unicode and normalize Devanagari text.
Age Calculator
Calculate exact age in years, months, days, weeks, and total days between date of birth and today.
Date Difference
Calculate duration between two dates in years, months, weeks, days, hours, and minutes.
Random & Chance
Dice roller, coin flipper, and decision wheels. (4 tools)
Dice Roller
Roll single or multiple polyhedral dice (D4 to D100) with visual faces, roll history, and statistical roll summaries.
Coin Flip
Flip single or batch coins with animated 3D coin flips, streak counters, and heads/tails probability statistics.
Your Data Stays Strictly in Your Browser.
Unlike traditional online tools that upload your code, confidential JWT tokens, text, and photos to remote servers, Acharya Tools executes all computation client-side using JavaScript, Web Crypto, and HTML5 Canvas.