PrivateTools
Word & Character CounterText · Count words, characters, sentences, reading time, speaking time, keyword density and writing progress. QR Code GeneratorGenerators · Create QR codes for URLs, text, Wi-Fi, contacts and events with local export. Secure Password GeneratorGenerators · Generate strong Web Crypto passwords, passphrases and batches without sending anything away. Color & Contrast StudioDesign · Convert HEX, RGB, HSL, HSV and CMYK, test WCAG contrast and generate useful palettes. JSON Formatter & ValidatorDeveloper · Format, validate, minify and inspect JSON with precise browser-side parsing. Base64 Encoder / DecoderDeveloper · Encode UTF-8 text and files, decode Base64 and switch URL-safe mode locally. Hash GeneratorDeveloper · Generate MD5 compatibility checksums plus SHA-1, SHA-256, SHA-384 and SHA-512 digests locally. URL Encoder / DecoderDeveloper · Encode or decode URL components and inspect query parameters instantly. JWT DecoderDeveloper · Inspect JWT headers and payloads locally without verifying or uploading the token. Regex TesterDeveloper · Test JavaScript regular expressions, flags and matches directly in the browser. Diff CheckerDeveloper · Compare two text or code versions line by line entirely in the browser. Hashtag WorkspaceCreator · Build, save and organize hashtag sets with transparent local relevance scoring. YouTube Creator UtilityCreator · Extract public thumbnails, check title/description length and build timestamps. Mortgage CalculatorFinance · Estimate payments, total interest, payoff time and amortization with scenario comparison. Loan CalculatorFinance · Compare loan payments, APR assumptions, total cost and accelerated payments. Compound Interest CalculatorFinance · Model recurring contributions and compound growth across years. Currency ConverterFinance · Convert currencies with timestamped daily reference rates and a 30-day history chart. Net Salary EstimatorFinance · Estimate take-home pay with configurable tax, social contribution and payroll deduction rates. PDF WorkspaceFiles · Merge, split, reorder, rotate, optimize, protect, watermark, visually sign, render and build PDFs locally. Image StudioFiles · Batch crop, rotate, resize, convert, compress and strip metadata locally with native and WASM codecs. Citation GeneratorAcademic · Create APA, MLA, Chicago, ABNT, ISO, DIN and NF-style citations with optional DOI/ISBN metadata lookup. GPA & Grade CalculatorAcademic · Calculate weighted GPA and compare common US, German and Japanese grading scales. Academic Word CounterAcademic · Count assignment words, estimate pages and optionally exclude a final references section. Bibliography BuilderAcademic · Build, sort and export a bibliography locally from multiple citation records.
Tip: press / anywhere to searchEsc · Close
Fast by design · Private by default

Useful tools.
Without the usual noise.

A focused toolbox for text, files, creators, developers and everyday calculations. No account wall. Local processing wherever the browser can do the work safely.

No account requiredLocal-first processingKeyboard & mobile friendly
Start here

The most useful workflows are one click away and designed to work without an onboarding ceremony.

24 tools available
Text Word & Character CounterCount words, characters, sentences, reading time, speaking time, keyword density and writing progress. Open tool Generators QR Code GeneratorCreate QR codes for URLs, text, Wi-Fi, contacts and events with local export. Open tool Generators Secure Password GeneratorGenerate strong Web Crypto passwords, passphrases and batches without sending anything away. Open tool Developer JSON Formatter & ValidatorFormat, validate, minify and inspect JSON with precise browser-side parsing. Open tool Finance Mortgage CalculatorEstimate payments, total interest, payoff time and amortization with scenario comparison. Open tool Files PDF WorkspaceMerge, split, reorder, rotate, optimize, protect, watermark, visually sign, render and build PDFs locally. Open tool
Everything in one place

Browse the complete toolbox

Filter by category or search by the task you want to finish.

Text Word & Character Counter Open tool Generators QR Code Generator Open tool Generators Secure Password Generator Open tool Design Color & Contrast Studio Open tool Developer JSON Formatter & Validator Open tool Developer Base64 Encoder / Decoder Open tool Developer Hash Generator Open tool Developer URL Encoder / Decoder Open tool Developer JWT Decoder Open tool Developer Regex Tester Open tool Developer Diff Checker Open tool Creator Hashtag Workspace Open tool Creator YouTube Creator Utility Open tool Finance Mortgage Calculator Open tool Finance Loan Calculator Open tool Finance Compound Interest Calculator Open tool Finance Currency Converter Open tool Finance Net Salary Estimator Open tool Files PDF Workspace Open tool Files Image Studio Open tool Academic Citation Generator Open tool Academic GPA & Grade Calculator Open tool Academic Academic Word Counter Open tool Academic Bibliography Builder Open tool
Converters

A clean conversion engine for everyday units

One mathematical source of truth powers every conversion, from length and mass to pressure and data.

LengthWeight / MassVolumeTemperatureAreaSpeedTimeDataEnergyPressureDensityFrequencyAngleIllumination
Why this feels different

Less friction. More trust.

The interface is intentionally quiet. Your task stays in the center while performance, privacy and accessibility are handled underneath.

Local-first by architecture

Text, passwords, PDFs, images and supported calculations are processed in your browser instead of being sent to an application server.

Static first, interactive only where needed

Astro ships useful HTML first. React loads only for the interactive tool you open, reducing global JavaScript and keeping navigation responsive.

Accessible from the foundation

Keyboard focus, semantic controls, touch targets, responsive layouts and reduced-motion preferences are built into the base UI.