Practical guides for converting, compressing and editing files — written for real, everyday tasks.

How to Open a JSON File on Windows, Mac and Phone (Free)
Open any JSON file in Notepad, TextEdit or your browser, then make it readable with a formatter or turn it into an Excel sheet. Free, no installs.
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How to Make a QR Code for a Google Form (Free, No Expiry)
Turn a Google Form link into a free QR code in two minutes, plus the form settings that silently block people after they scan.
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How to Convert a Word Document to JPG (Free, Every Page)
Word can't save as JPG, but you can: convert the DOCX to PDF, then each page to a JPG. Free, layout intact, plus tips for size limits.
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How to Post a PDF on Instagram as a Carousel (Free)
Instagram won't take PDF files. Turn each page into an image, fit it to 4:5 or square, and post it as a readable carousel. Here's how.
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Email Signature Image Size: Exact Pixels for Logos and Photos
The right pixel sizes for email signature logos, headshots and banners, plus how to resize and compress them so they look sharp in Gmail and Outlook.
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How to Convert a Scanned PDF to Text (Free OCR, No Software)
A scanned PDF is a picture of text, so you need OCR. How to check your file, prep the pages and extract the text free, with honest limits.
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How to Resize a Photo to 600x600 for a US Visa or Passport
Crop to a square, resize to 600x600, compress under 240 KB: the right order to prepare a US visa or passport photo online, free.
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PowerPoint Too Large to Email? How to Shrink It (Free)
PowerPoint too big to attach? Send a compressed PDF, shrink the photos and video inside the deck, or share a link. Here's which to use when.
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How to Convert MP3 to WAV for Free (and When You Should)
Convert MP3 to WAV free in any browser, see why editors and upload forms ask for WAV, and why the conversion can't improve sound quality.
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How to Convert OGG to MP3 for Free (Voice Notes Too)
OGG file won't play on your phone, car stereo or editor? Convert it to MP3 in a minute, free, and learn what quality to expect.
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How to Convert HEIC to PDF (iPhone Photos, Free, 3 Ways)
Turn iPhone HEIC photos into one PDF: convert to JPG, then image to PDF, or use the iPhone Files app. Page order and size tips included.
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