ToolNest

All 55 free tools

Everything on the site in one place. Start typing to filter, or jump straight to a category. Every tool is free, unlimited, and runs entirely inside your browser.

Finance Calculators

Mortgage CalculatorMonthly payment with taxes, insurance & PMI
Paycheck CalculatorTake-home pay after taxes for all 50 US states
Loan / EMI CalculatorMonthly payment & full amortization schedule
Retirement CalculatorWill your savings last? Find out in seconds
Compound InterestWatch your money grow year by year
Tip CalculatorTip amount & bill split, instantly
Currency ConverterLive exchange rates for 30+ currencies
Sales Tax CalculatorUS sales tax by state, or custom rate
VAT & GST CalculatorAdd or remove VAT/GST for 20+ countries

Everyday Calculators

Age CalculatorExact age in years, months & days
BMI CalculatorBody mass index with healthy range
Percentage Calculator% of a number, % change & more
Unit ConverterLength, weight, temperature & more
Color ConverterHEX ↔ RGB ↔ HSL with live preview
Random Number GeneratorTrue random numbers in any range
Discount CalculatorSale price & how much you save
Date Difference CalculatorDays, weeks & months between dates
Time Zone ConverterCompare a time across cities worldwide
Calorie & TDEE CalculatorDaily calories to lose, keep or gain weight

PDF Tools

PDF Text ExtractorCopy selectable text from PDFs, privately
Merge PDFCombine multiple PDFs into one file
Split PDFExtract pages or split into separate files
Images to PDFTurn JPG & PNG photos into a single PDF
PDF to ImagesExport every PDF page as a PNG image
Rotate PDFFix sideways pages and save permanently
Organise PDF PagesDelete, reorder and rebuild a PDF visually
Add Page Numbers to PDFNumber pages in any position or style

Image Tools

Seller Image KitResize, compress & watermark a batch of photos
Image CompressorReduce file size with adjustable quality
Image ResizerResize to exact pixels, keep aspect ratio
Image ConverterPNG ↔ JPG ↔ WebP in one click
Image CropperCrop with drag-select or preset ratios
Watermark ImageStamp your name across a photo, free
Image to Base64Data URI for CSS, HTML or Markdown
Favicon GeneratorEvery icon size plus favicon.ico, in one ZIP

Business Tools

Profit Margin CalculatorKnow your profit after costs and selling fees
Invoice GeneratorProfessional PDF invoices for freelancers
Resume BuilderClean, ATS-friendly resume — download as PDF

Text Tools

Text CleanerRemove extra spaces, blank lines and duplicates
Word CounterWords, characters, sentences & reading time
Case ConverterUPPER, lower, Title, camelCase & more
Lorem Ipsum GeneratorPlaceholder text for your designs
Text Diff CheckerCompare two texts line by line
JSON FormatterBeautify, validate & minify JSON
Base64 Encode / DecodeEncode & decode Base64 with Unicode support
URL Encode / DecodeEscape & unescape URLs safely
Number Base ConverterBinary ↔ Octal ↔ Decimal ↔ Hex
Markdown PreviewerWrite Markdown, see live HTML
Regex TesterLive matches, groups and replace preview
JWT DecoderDecode claims & verify HMAC signatures
CSV to JSON ConverterBoth directions, quotes handled correctly

Generators

Password GeneratorCryptographically secure passwords
QR Code GeneratorQR codes for links, Wi-Fi & text — free PNG
UUID GeneratorBulk v4 UUIDs, one click to copy
Hash GeneratorSHA-1, SHA-256, SHA-384 & SHA-512

100% private. Files are processed on your device and never uploaded.

Instant results. No upload queue. Processing time depends on your device.

Free forever. No signup, no watermark, no paid tier.

Works everywhere. Use a modern browser on your phone or computer.