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.
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Privacy first

Privacy by architecture

The core rule is simple: a local tool should not quietly turn your input into server data.

Local tool processing

Text, passwords, conversion inputs, supported PDFs and images are processed inside the browser by the tools included in this build. Those inputs are not sent to an application server for the core operation.

Advertising is a separate boundary

Third-party ad networks may process device, network and consent information. Advertising is therefore isolated from tool logic and disabled by default until the correct regional consent flow and vendor policy are configured.

Network-optional features are labelled

When a feature genuinely needs an external resource, the interface says so. For example, currency conversion requests daily reference rates from Frankfurter; DOI and ISBN lookups contact Crossref or Open Library only when requested; and a YouTube thumbnail preview loads a public image from YouTube’s image CDN only after a valid video ID is entered. Other tool inputs stay outside those requests.

Policy in practice

Product privacy rules

  • Do the work locally when modern browser APIs make that practical.
  • Never describe a network-backed feature as fully local.
  • Do not require an account for the core utility workflow.
  • Keep advertising and analytics outside the data path of the tool input.