Acharya Tools: All Developer Tools & Utilities
56 toolsAll utilities run 100% client-side with zero data uploads. Select any category from the sidebar.
JSON Viewer & Validator
Format, minify, and validate JSON data instantly in your browser with real-time error reporting.
JSON → Dart
Convert JSON payloads into clean, type-safe Dart classes for Flutter and Dart projects.
JSON ↔ CSV Converter
Instantly convert JSON arrays to CSV format and CSV data back to JSON.
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.
Base64 Encoder/Decoder
Encode and decode text, files, and images to/from Base64 format locally.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, and Bcrypt hashes from any text.
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.
UUID Generator
Generate cryptographically secure UUID v4 identifiers in bulk with uppercase, lowercase, and formatting options.
Timestamp Converter
Convert between Unix timestamps (seconds & milliseconds), UTC, ISO 8601, and local date formats.
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.
Slug Generator
Convert titles and sentences into URL-friendly slugs with custom separators and Unicode transliteration.
Line Sorter
Sort lines alphabetically, numerically, by length, or in reverse, with duplicate removal options.
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 an interactive drag-and-resize box, fixed aspect ratios (1:1, 4:5, 16:9, 9:16), rotation, and flipping.
Image Splitter
Split photos into grids (3x3 for Instagram, 2x2), horizontal strips, or seamless panorama swipe carousels with instant ZIP export.
Color Palette Extractor
Extract dominant color palettes from any uploaded picture with HEX, RGB, and HSL copy buttons.
Background Remover
Remove image backgrounds instantly and securely in your browser using a local AI segmentation model.
QR Generator
Create customizable QR codes for text, URLs, emails, phone numbers, and Wi-Fi networks with PNG/SVG downloads.
Favicon Generator
Generate standard web favicons and Apple touch icons (16x16, 32x32, 180x180, 512x512) and download as a ZIP.
Land Area Converter
Convert land area between Hilly (Ropani-Aana), Terai (Bigha-Katha), and standard international units.
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.
Nepal Festival Calendar
Browse major Nepalese festivals, cultural events, public holidays, and their significance.
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.
Roulette & Decision Wheel
Spin interactive customizable wheels, European roulette (0–36), Yes/No deciders, and custom option pickers.
Raffle & Name Picker
Draw random winners, pick names from a hat, run multi-round giveaways, and celebrate with confetti.
PDF Metadata Viewer
Inspect PDF metadata: title, author, creator, creation date, modification date, and page count.
PDF to Images
Convert each PDF page into a high-resolution PNG or JPG image, downloadable individually or as a ZIP.
PDF Page Counter
Instantly count pages in a PDF file and display file size, aspect ratio, and per-page dimensions.
PDF Merger
Combine multiple PDF files into a single document. Reorder pages by drag-and-drop before merging.
PDF Splitter
Extract pages or page ranges from a PDF into separate files, downloadable as individual PDFs or a ZIP.
PDF Compressor
Reduce PDF file size by downsampling embedded images and removing redundant metadata.
PDF Password Remover
Remove the open password from a user-password-protected PDF if you know the correct password.
PDF Password Locker
Add an open password to any PDF so only recipients with the correct password can view it.
Images to PDF
Combine multiple JPG or PNG images into a single PDF document with per-page size options.
PDF Page Editor & Organizer
Reorder, reshuffle, rotate, delete, duplicate, and organize PDF pages visually with live drag & drop thumbnails.
P2P Secure File Drop
Send large files directly browser-to-browser via WebRTC with zero server uploads.