Tools that run in your browser

Compare two JSON files and see every difference.

Beautify, minify and validate JSON.

Find where JSON breaks and get a plain-English explanation and fix.

Beautify, minify and check that XML is well-formed.

Convert JSON arrays and objects to CSV.

Convert JSON to clean, readable YAML.

Decode a JSON Web Token and inspect its claims.

Test JavaScript regular expressions with live match highlighting.

Write Markdown and see a live preview side by side.

Convert Markdown into a Word (.docx) document with headings, lists and tables.

Compare two texts and see every added, removed and changed line.

Convert Unix timestamps to dates and dates to timestamps.

See what a date and time is in other time zones, with daylight saving handled.

Encode and decode Base64 text, including URL-safe Base64.

Percent-encode text for URLs, or decode it and read the query parameters.

Generate random v4 or time-ordered v7 UUIDs, and check any UUID.

Combine several PDF files into one, in the order you choose.

Extract the text from a PDF file.

Turn JPG, PNG, WebP or GIF images into one PDF, one image per page.

Summarize long text into a short summary and key points.

Rewrite text to improve, shorten, expand or simplify it, in the tone you want.

Fix spelling, grammar and punctuation and adjust the tone.

Clean up text from scanned documents: misread letters, broken words and line breaks.

Get a plain-English explanation of code, step by step, with possible issues.

Describe what you need in plain English and get a SQL query for your database.

Describe a process or system and get a flowchart, sequence, UML or ER diagram as Mermaid code.

Turn a rough idea into a clear, ready-to-use prompt for ChatGPT, image or coding AIs.

Extract structured JSON from invoices, emails, forms and other documents.

See how well your resume matches a job, with strengths, gaps and suggested edits.

Compare two JSON documents and get a plain-English explanation of what changed.