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Quick Tools

Small tools for the thing you need right now.

Built for developers, usable by anyone. Every tool runs entirely in your browser — your code, text and files never leave this tab.

No uploads, no sign-up, no tracking.

Developers

Encode, decode, inspect and validate.

JSON FormatterFormat, minify and validate JSON with precise error positions.Base64 Encode & DecodeConvert text or any file to Base64 and back.URL Encode & DecodePercent-encode URLs and edit query parameters as a table.Regex TesterTest patterns with live match highlighting and capture groups.UUID GeneratorGenerate v4 and v7 UUIDs in bulk.Hash GeneratorSHA-1, SHA-256, SHA-384 and SHA-512 for text or files.JWT DecoderInspect a token's header, payload and expiry.Cron BuilderRead a cron expression in plain English and preview its next runs.Unix Timestamp ConverterEpoch to human-readable date and back, with a live now ticker.Social Link InspectorBreak a YouTube, Instagram or Facebook link into its ID, canonical URL and embed code.Case ConvertercamelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE.

Text

Count, compare and transform writing.

Diff CheckerCompare two blocks of text line by line or word by word.Word & Character CounterCounts, reading time and keyword density as you type.Quick NotesA small persistent scratch list for values you'll reuse.

Converters

Units, bases and time zones.

Unit ConverterLength, mass, temperature, area, volume, speed, data and time.Number Base ConverterBinary, octal, decimal, hex and any base from 2 to 36.Timezone ConverterCompare a moment in time across several zones at once.

Calculators

Everyday maths, worked out.

Percentage CalculatorEvery common percentage question, answered live.Discount CalculatorSale price, savings and effective discount with optional tax.Loan & EMI CalculatorMonthly payment, total interest and a full amortization schedule.Date DifferenceTime between two dates, plus add or subtract a duration.

Generators

Make codes, IDs and assets.

QR Code GeneratorQR codes for links, WiFi and contact cards. PNG or SVG.

PDF & Docs

Merge, split, sign and compress.

Markdown to PDFTurn one or many .md files into a clean, printable PDF — readable code blocks, identical in light or dark mode.PDF MergeCombine multiple PDFs into one, in any order you choose.

Image

Resize, convert and clean up.

Image Resizer & CompressorResize by percentage, dial in quality, or target a maximum file size.Image Format ConverterPNG, JPEG and WebP, converted one at a time or in a batch.EXIF Viewer & StripperInspect a photo's camera, date and GPS data, or remove it.Favicon GeneratorOne image in, every favicon size and the HTML to use them out.YouTube Thumbnail DownloaderGrab any video's cover image in every size YouTube publishes.

Video

Record, trim and compress.

Video Downloader (yt-dlp command)Paste a YouTube, Instagram or Facebook link — get the exact command to download it.

Money

Budgets, interest and payoff plans.

Currency ConverterConvert between currencies with daily ECB reference rates.Compound Interest CalculatorProject growth with regular contributions and a full yearly breakdown.Savings Goal CalculatorSee how long it takes to hit a savings target and when you'll get there.