More Developer Tools
211 free more developer tools tools in the Developer Tools collection — every one runs in your browser with no signup and no uploads. Page 3 of 3.
Data Anonymizer
Mask emails, names, phones and cards in CSV or JSON with realistic fakes.
Sign PDF Online
Draw or type a signature, place it on any page, and download a signed PDF.
PDF N-up: Multiple Pages Per Sheet
Arrange 2, 4, 6, 8, 9 or 16 PDF pages on one sheet for printing.
PDF Cropper
Trim page margins and set a new crop box on every page — preview and download.
Delete Pages from a PDF
Remove unwanted pages from a PDF and download the trimmed file.
ZIP Archive Explorer
Open a .zip in your browser, browse its files, preview text and images, and extract any file.
PDF Booklet Imposition Tool
Reorder PDF pages into 2-up saddle-stitch booklet print order.
PDF Text Per Page
Extract the text from each PDF page into a labelled, copyable list.
XPath Tester & Evaluator
Run XPath 1.0 expressions against your XML and see every matching node — live, in your browser.
Chmod Calculator
Tick read, write and execute boxes — get the octal chmod command.
Line Height Calculator
Convert line-height across all CSS units, see leading, and check readability.