
Articles
Practical guides for getting things done with our tools, and news from the dev blog.


· 2 min read
How to Check if a Domain Name Is Available
Find out if a domain name is free to register or already taken. For a taken name, see the registrar, the date it was created and the date it expires.

· 3 min read
How to Check if an IP Address Is a VPN or Datacenter IP
Find out if an IPv4 or IPv6 address is on a known VPN list or datacenter list, and see the date the lists were last updated.

· 3 min read
How to Check JSON-LD Structured Data on a Web Page
Check the JSON-LD on any web page for errors and missing fields, see each schema.org item it describes, and read the JSON of every block.

· 2 min read
How to Compress a PDF File in Your Browser
Make a PDF smaller for email or upload, compare the size before and after, and download the compressed file. Nothing is uploaded.

· 2 min read
How to Convert a PDF to PNG Images
Turn the pages of a PDF into PNG images in your browser, pick the pages and the image size, and download one page or all of them.

· 2 min read
How to Delete Pages from a PDF
Remove single pages or page ranges from a PDF in your browser, check the selection on the thumbnails, and download the file without them.

· 2 min read
How to Merge PDF Files into One Document
Combine two or more PDF files into one in your browser, put the pages in the order you want, and download the merged file.

· 2 min read
How to Rotate PDF Pages
Turn sideways or upside down PDF pages upright in your browser, one page or all of them, and download the fixed file.

· 3 min read
How to Add a Retro Film Date Stamp to Any Photo
Add the orange date stamp from old film cameras to a photo in your browser, and make it look real instead of pasted on.


· 3 min read
How to Extract Attachments from an MBOX File
Get the photos, PDFs, and documents out of a Gmail Takeout or Thunderbird mailbox file in your browser, without a mail client.