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Your files never leave this page.

Small tools for PDFs, spreadsheets, images, and invoices. Each one opens your file in the browser, does one job, and hands back the result. Nothing is uploaded.

  • No account
  • No upload
  • No ads
  • Works offline
Browse the tools

Commerce 1

Label Sheet Printerbeta

Lay out a label sheet with text, barcodes, and QR, fill it from a CSV, and print or save a PDF.

Money 2

Invoice Makerbeta

Make invoices, quotes, and receipts with saved clients and items. Clean PDF, no watermark, no signup.

Loan & Mortgage Calculatorbeta

Monthly payment, total interest, and a full amortisation schedule, with optional extra payments.

Calculators 2

BMI Calculatorbeta

Body Mass Index in metric or imperial units, with the category and a healthy weight range.

Statistics Calculatorbeta

Mean, median, mode, standard deviation, quartiles, and more from a list of numbers.

Documents 4

PDF Page Editorbeta

Reorder, rotate, delete, merge, and split PDF pages, and read or strip the document metadata.

PDF Text Editorbeta

Fix a typo or wrong number in a PDF: pick a line, retype it, keep the embedded font, and save.

Calendar File Makerbeta

Build an .ics calendar file from a form or a CSV of dates, and open, fix, or merge existing ones.

Subtitle Timing Fixerbeta

Shift or rescale subtitles that run early, late, or drift, and convert between SRT and WebVTT.

Data 15

Data Converterbeta

Convert and reshape CSV, TSV, JSON, NDJSON, and XLSX. Filter rows, join two files, and dedupe.

JSON to CSV Converterbeta

Convert a JSON array of objects to CSV and back. Nested fields flatten to dotted column names.

CSV Cleanerbeta

Trim cells, drop blank rows and columns, dedupe, fill gaps, and find and replace in a CSV.

Mock Data Generatorbeta

Build rows of realistic-looking test data and download them as CSV. The same seed gives the same rows.

CSV to SQLbeta

Turn CSV into CREATE TABLE and INSERT statements with guessed column types. Four SQL dialects.

CSV to Tablebeta

Convert CSV into a Markdown, HTML, LaTeX, or plain-text table.

Column Toolsbeta

Pick, reorder, drop, or insert delimited columns, and switch the delimiter.

CSV Splitterbeta

Split one CSV into several by row count, by number of parts, or grouped by a column value.

JSON Querybeta

Pull values out of JSON with a small path language, and flatten or unflatten a document.

SQL Formatterbeta

Pretty-print or minify a SQL statement. Uppercases keywords and breaks the major clauses.

List Comparebeta

Compare two lists of lines: what is in both, only in one, the union, and the counts.

INI to JSONbeta

Convert between INI and JSON, with nested sections and optional type coercion.

Data Transposebeta

Swap the rows and columns of CSV or other delimited data. Quoted fields and ragged rows are handled.

NDJSON Converterbeta

Convert between NDJSON, a JSON array, and CSV rows.

TOML to JSONbeta

Convert between TOML and JSON: tables, arrays of tables, inline tables, and typed values.

Text 6

Word & Character Counterbeta

Count characters, words, sentences, paragraphs, and reading time, and see the most-used words.

Line Toolsbeta

Sort, dedupe, shuffle, number, trim, and reformat a list of lines. All in the browser.

Text Encrypt / Decryptbeta

Lock a note behind a passphrase with AES-GCM and PBKDF2. The key never leaves your browser.

Whitespace & Invisible Character Cleanerbeta

Strip trailing spaces, zero-width characters, and stray non-breaking spaces, and fix tabs and curly quotes.

Duplicate Line Finderbeta

Find repeated lines with their counts and line numbers, and produce the de-duplicated text.

Word Frequency Counterbeta

Count words or phrases with density percentages, an optional stop-word filter, and text stats.

Convert 1

Number Base Converterbeta

Convert a number between binary, octal, decimal, hex, and any base 2 to 36, with a two's-complement view.

Images 3

Image Compressorbeta

Resize, compress, and convert images to JPG, PNG, WebP, or AVIF in bulk. Strips metadata.

Image Color Pickerbeta

Pull the main colours out of a photo or screenshot as hex swatches you can copy.

Image Recolorbeta

Tint an image, swap one colour for another, or knock out a solid background to transparency.

Developer 3

Text Diffbeta

Compare two blocks of text line by line and word by word, with a copyable unified patch.

JSON Diffbeta

Compare two JSON documents and see every added, removed, or changed key and array item.

JSON to Typesbeta

Turn a JSON sample into TypeScript interfaces or Go structs, merged across array items.

Security 1

Random Token Generatorbeta

Generate cryptographically random tokens: hex, Base64, URL-safe, UUID, or a custom alphabet.

How it works

  1. 1

    You choose a file. The browser reads it with the File API, on your device.

  2. 2

    The tool does its work in the page and in background workers. No server is in the loop.

  3. 3

    You download the result. It was built on your machine.

Close the tab and nothing is left behind, apart from the settings a tool saves in your own browser. You can check the network panel: the pages talk to this domain only.