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The toolbox
Browse 86 free browser-based tools across 6 categories. Search by name or choose a category. No complicated menus.
Showing 86 tools.
Work out percentages, increases and decreases.
Open toolFind an exact age between two dates.
Open toolFind the sale price and your savings.
Open toolConvert seconds, minutes, hours and days.
Open toolConvert a date and time between common world time zones.
Open toolEstimate monthly loan payments, interest and total repayment.
Open toolAdd or remove GST and see the tax amount.
Open toolCalculate body mass index from height and weight.
Open toolEstimate SIP growth, returns and future value.
Open toolConvert length, weight, temperature and volume units.
Open toolFind date differences or add and subtract days.
Open toolEstimate fixed deposit interest and maturity amount.
Open toolCalculate compound growth, interest and final amount.
Open toolCompare estimated income tax under the old and new regimes for FY 2026-27.
Open toolEstimate monthly in-hand salary from annual CTC.
Open toolEstimate PPF growth, contributions and maturity value.
Open toolEstimate HRA exemption and taxable HRA.
Open toolConvert currencies using current reference exchange rates.
Open toolCheck gold and silver reference values in INR by weight and purity.
Open toolCalculate trade quantity from account size, risk and stop-loss distance.
Open toolCompare potential reward with the amount at risk on a trade.
Open toolEstimate long or short trade profit and loss after fees.
Open toolCalculate a stop price from entry, quantity and maximum planned risk.
Open toolCalculate target prices from entry, stop-loss and an R multiple.
Open toolCalculate the cash amount represented by a chosen risk percentage.
Open toolEstimate required margin from position value and leverage.
Open toolCalculate effective leverage from capital and position value.
Open toolFind the price needed to cover entry costs and trading fees.
Open toolCalculate the weighted average price across multiple buys.
Open toolEstimate expected profit or loss per trade from win rate and average outcomes.
Open toolMeasure account drawdown and the gain needed to recover it.
Open toolGenerate random integers in your browser.
Open toolCalculate a tip, final bill and each person's share.
Open toolSplit a bill between people with an optional tip.
Open toolCreate a downloadable QR code from text or a URL in your browser.
Open toolCreate a shorter, shareable link from a long URL.
Open toolTurn a few words into a ready-to-use caption, message or request.
Open toolFormat and inspect JSON with readable indentation.
Open toolConvert a JSON array of objects into downloadable CSV data in your browser.
Open toolGenerate UUIDs in your browser.
Open toolGenerate strong passwords locally in your browser.
Open toolGenerate SHA-256, SHA-384 and SHA-512 hashes from text in your browser.
Open toolEncode or decode URL text in your browser.
Open toolEncode or decode Base64 text.
Open toolConvert Unix timestamps and dates in either direction.
Open toolConvert HEX, RGB and HSL color values.
Open toolConvert HTML special characters to and from entities.
Open toolTest regular expressions against text and inspect matches and capture groups.
Open toolDecode JWT headers and payloads locally without verifying the signature.
Open toolOpen Markdown, HTML, CSS, JS, TS, JSON, YAML and XML files in your browser.
Open toolCompare two PDFs for content, alignment, layout and visual similarity in your browser.
Open toolFind added and removed readable text between two PDF versions.
Open toolRender two PDFs and inspect matching pages visually side by side.
Open toolCompare PDF page sizes and text placement to spot layout shifts.
Open toolExtract readable text from a PDF locally in your browser.
Open toolInspect PDF page count, dimensions and basic document metadata.
Open toolAnalyze PDF page dimensions, orientation, text density and file size.
Open toolCombine multiple PDFs into one file locally.
Open toolExtract selected pages from a PDF into a new file.
Open toolRender PDF pages as downloadable images in your browser.
Open toolCombine JPG and PNG images into a single PDF locally.
Open toolCreate a smaller, re-rendered PDF for sharing and storage.
Open toolCompare two images for visual similarity and dimensions.
Open toolCompare two screenshots and highlight how closely they match.
Open toolInspect image format, size, dimensions, aspect ratio and orientation.
Open toolCheck exact image dimensions, aspect ratio, orientation and megapixels.
Open toolCompare two supported text documents for content changes.
Open toolRemove Claude-style copy markers and tidy pasted text without rewriting it.
Open toolCount words, characters and reading time.
Open toolCount characters with and without spaces.
Open toolChange text between common letter cases.
Open toolRemove extra spaces and blank lines from pasted text.
Open toolKeep the first copy of each non-empty line.
Open toolTurn page titles into clean URL slugs.
Open toolCompare two texts and highlight added and removed lines.
Open toolReduce JPG, PNG and WebP file sizes in your browser while controlling visual quality.
Open toolScale images to exact target pixel dimensions with optional aspect-ratio locking.
Open toolCrop JPG, PNG and WebP images using exact pixel coordinates.
Open toolRotate images by 90°, 180° or 270° and flip them locally.
Open toolConvert between JPG, PNG and WebP formats in your browser.
Open toolConvert an image into a copyable Base64 data URL locally.
Open toolDecode a Base64 image string into a preview and downloadable image locally.
Open toolConvert SVG markup into a PNG image in your browser.
Open toolReorder or remove PDF pages and download the new document.
Open toolRotate an individual PDF page and download the updated document.
Open toolPackage any file into a portable structured payload with metadata, checksum and encoded content.
Open toolRecommended starting points
A small selection of common tasks across calculators, trading, everyday, developer, text and file tools.
Percentage Calculator
Work out percentages, increases and decreases.
EMI Calculator
Estimate monthly loan payments, interest and total repayment.
Currency Converter
Convert currencies using current reference exchange rates.
Position Size Calculator
Calculate trade quantity from account size, risk and stop-loss distance.
Unit Converter
Convert length, weight, temperature and volume units.
Date Calculator
Find date differences or add and subtract days.
JSON Formatter
Format and inspect JSON with readable indentation.
Password Generator
Generate strong passwords locally in your browser.
Word Counter
Count words, characters and reading time.
PDF Merger
Combine multiple PDFs into one file locally.
Image Metadata Viewer
Inspect image format, size, dimensions, aspect ratio and orientation.
Document Similarity Checker
Compare two PDFs for content, alignment, layout and visual similarity in your browser.
Money & Calculators
Work out money, taxes, loans and returns.
Trading & Investing
Plan trade risk, position size, returns and portfolio scenarios.
Everyday Tools
Handle dates, time, units and everyday tasks.
Developer Tools
Handle common coding and data tasks.
Text Tools
Clean, count, write and change text.
File & Image Tools
Handle PDFs, documents, images and common file tasks in your browser.