Free Online File Converters
Format conversion is almost always someone else's constraint: a portal that will not take HEIC from an iPhone, a CMS that rejects WebP, a form that wants one PDF instead of six photos. Each converter here does one of those jobs, states which formats it accepts, and gives you the converted file to download.
4 tools in this category. All free, no sign-up.
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All conversion tools
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Merge PDF
Combine multiple PDF files into one single PDF document. Merge PDFs in any order you want.
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JPG to PDF
Convert JPG images into a PDF document. Combine multiple images into one PDF.
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Split PDF
Separate one PDF file into multiple PDFs. Split by page ranges or into equal parts.
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Compress PDF
Reduce PDF file size without losing quality. Compress PDFs for email, web, or storage.
Conversion Tools — frequently asked questions
Converting to JPG re-encodes the image with lossy compression, so a small amount of detail is lost even at high quality settings. Converting to PNG is lossless but produces much larger files for photographs. Convert once, from the original, rather than repeatedly.
HEIC is the default camera format on recent iPhones, and Windows needs an extension from the Microsoft Store to decode it. Converting the photos to JPG avoids the problem entirely because every operating system and browser reads JPG.
Converters that run in your browser never send the file anywhere. Converters that need a server say so on their page; those uploads exist only to produce your download.