Free Online Tools & Calculators

Calculate percentages, percentage increases, decreases, and differences with instant step-by-step formulas.

Calculate GST (Goods & Services Tax) easily: Add GST to base amount or Reverse GST (extract tax from total) with standard 5%, 12%, 18%, 28% slabs.

Calculate equated monthly installments (EMI) for home loans, car loans, and personal loans with total interest and amortization charts.

Calculate final sale price, discount amount saved, and double discount / stackable coupon savings instantly.

Convert dollar to rupee, rupee to dollar, and between 160+ world currencies at live mid-market exchange rates.

Calculate your exact age in years, months, weeks, days, hours, and minutes, plus next birthday countdown.

Calculate exact days, business days, weeks, months, and years between two dates or add/subtract time from a date.

Count words, characters, sentences, paragraphs, and estimate reading & speaking time in real-time.

Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, clean spaces, and count words.

Compare two text snippets side-by-side to highlight additions, deletions, and line-by-line differences.

A distraction-free notepad that saves automatically to your browser. No account, no sync, no waiting.

Read any text aloud using your device's own voices, with adjustable speed and pitch.

Dictate and get a live transcript you can edit, copy, or download. Supports Hindi, Tamil, and more.

Format, validate, prettify, minify, and inspect JSON payloads with real-time error detection.

Encode text or decode Base64 strings instantly with live UTF-8 support and URL-safe mode.

Decode JSON Web Tokens (Header, Payload, Signature) and inspect expiration timestamps safely in your browser.

Generate cryptographically secure Version 4 UUIDs (GUIDs) in bulk with uppercase, hyphen, and quote formatting.

Encode query parameters and special characters into percent-encoded URL format, or decode URLs to plain text.

Generate dummy images, PDFs, Word files, CSV, JSON, and video at an exact file size for testing uploads.

Generate dummy CSV, JSON, and plain text files at an exact size with realistic placeholder records.

Generate high-resolution custom QR codes for URLs, text, Wi-Fi passwords, emails, and phone numbers. Download as PNG or SVG.

Compress image to exact target KB (e.g. under 50KB, 100KB, 200KB) with live quality adaptation and alerts.

Remove watermarks, logos, dates, and stamps from images using smart inpainting, or add custom watermarks.

Convert PNG images to JPG with custom background fill for transparent areas and adjustable compression quality.

Convert JPG and JPEG photos into lossless PNG format with crisp quality and zero compression artifacts.

Convert JPG and PNG images into modern Google WebP format to reduce file sizes by 30% to 80% while retaining quality.

Convert WebP images into universally compatible JPG or PNG formats for easy sharing and opening on any device.

Crop photos to custom dimensions or standard aspect ratios (1:1, 16:9, 4:3, 9:16 Story) with live preview.

Resize any image to exact pixel dimensions or a percentage, with aspect ratio locking.

Turn a logo into a full set of favicon PNGs at every size browsers and phones request.

Generate random placeholder images at an exact file size in JPG, PNG, or WebP.

Generate a short random WebM video clip in your browser for testing uploads and players.

Download and inspect video files from direct, authorized, or self-hosted media streams.

Inspect video resolution, codecs, and download permitted YouTube streams and creative assets.

Download and inspect Instagram Reels, Stories, and permitted video streams.

Inspect and download public, authorized Facebook video streams.

Inspect video resolution and download permitted TikTok videos and creative assets.

Download and inspect Twitter / X videos, GIFs, and media streams.

Convert JPG, PNG, and WebP images into PDF documents, or extract PDF pages as high-resolution images.

Convert PDF documents to editable Microsoft Word (.docx) files, or convert Word documents to PDF.

Remove owner password restrictions, copying, and printing locks from PDF files entirely in your browser.

Combine multiple PDF documents into a single organized PDF file entirely client-side in your browser.

Inspect PDF metadata, count pages, analyze embedded objects, and reduce document overhead.

Extract specific pages or page ranges from a PDF into a new document, entirely in your browser.

Render every page of a PDF as a JPG or PNG image and download them individually or as a ZIP.

Rotate every page of a PDF by 90, 180, or 270 degrees and save the corrected document.

Stamp sequential page numbers onto a PDF with a choice of position and starting number.

Generate dummy PDF files at an exact size, with a random number of pages and real text content.

Generate highly secure, cryptographically random passwords with customizable length, symbols, and memorability.

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes client-side in real-time.

Calculate gross profit margin, markup percentage, revenue, and cost price with clear visual breakdowns.

Get instant, plain-English explanations for complex formulas, financial calculations, regex patterns, or code snippets.