Free Online File Converter & PDF Tools

TheFilesGuy brings together 125+ free online file tools in one place. Convert images and audio, merge, split and compress PDFs, zip and unzip files, convert CSV, JSON and Excel data, and create blank files whenever you need them. There’s nothing to install and no account to create: open a tool, add your files and download the result in seconds.

Image converter: HEIC, WebP, AVIF, PNG and JPG

The most common file problem is an image in the wrong format. iPhones save photos as HEIC, which many apps and websites won’t accept, so HEIC to JPG and HEIC to PNG turn them into formats that open everywhere. Images saved from websites often arrive as WebP or AVIF: convert WebP to PNG, WebP to JPG or AVIF to JPG in one click. Switch between PNG to JPG and JPG to PNG, resize, crop or compress images for email and upload limits, make a passport photo, or extract text from a picture with image to text.

PDF tools for everyday documents

Merge PDF files into one, split a PDF into pages or ranges, and compress a PDF so it fits an email attachment. Turn photos and scans into documents with JPG to PDF, save pages as images with PDF to JPG, and sign a PDF by drawing or typing your signature. You can also rotate, reorder and delete pages, add page numbers and watermarks, password-protect or unlock a PDF, and copy text out with PDF to text or OCR for scanned documents.

Audio converter and editor

Convert voice notes and recordings to MP3 with M4A to MP3, WAV to MP3 and FLAC to MP3, or go the other way with MP3 to WAV. Trim audio with a waveform, join several tracks into one, make quiet recordings louder, or compress an MP3 to share it.

ZIP, file and data tools

Zip files and folders, see what’s inside a ZIP, or unzip files and download them one by one. Check an MD5 or SHA-256 checksum, find duplicate files, split a large file into parts and join it again, or encrypt a file with a password. For spreadsheets and code there’s CSV to JSON, Excel to CSV, a JSON formatter, YAML and XML to JSON, Markdown to HTML and a text compare tool.

Blank and dummy files

Need an empty file to fill in or test with? Download a blank PDF, an empty Word, Excel or PowerPoint document, a transparent PNG, silent MP3 audio, printable lined or graph paper, or a dummy file of an exact size for testing upload limits.

Compress files to fit any size limit

Email attachments, job applications, government forms and chat apps all cap the size of what you can send, often at 1, 2 or 10 MB. The image compressor can aim for a target size in KB and finds the best quality that fits, while the JPG compressor and PNG compressor give you finer control. Scanned documents shrink a lot with the PDF compressor, and long recordings get much smaller when you lower the bitrate of an MP3. Every compressor shows the size before and after, so you know right away whether the file now fits.

Which file format should you choose?

For photos you want to share, JPG is the safe choice: it opens everywhere and keeps files small. PNG is better for screenshots, logos and anything with sharp text or a transparent background, because it never loses detail. WebP and AVIF are newer formats that websites use to load faster; convert them to JPG or PNG when an app or form won’t accept them. Use PDF for documents that need to look the same on every device, such as forms, receipts and scanned pages, and MP3 for audio that has to play on any phone, car stereo or app. When you need to send many files together, put them in one ZIP.

Convert files on your phone or iPad

You don’t need a computer. Every tool works in Safari on iPhone and iPad and in Chrome on Android, with large buttons and pages that fit small screens. Tap the drop area to pick photos from your camera roll or files from cloud storage, convert them, and save the results to your device. It’s the quickest way to turn iPhone HEIC photos into JPG before uploading them, or to combine photos of a document into one PDF while you’re away from your desk.

How to convert a file online

Every tool works the same simple way. First, pick the tool for your task, such as HEIC to JPG or Merge PDF, from the list above or the menu. Next, drag your files onto the page or tap to choose them from your phone, tablet or computer, and adjust options like image quality, size, page range or MP3 bitrate if you want to. Finally, press the button and download your converted files, one at a time or together in a single ZIP. Converting a photo usually takes a second or two.

Why people use TheFilesGuy

Every tool is free, with no sign-up, no daily limit and no watermark on your files. Most tools handle a whole batch at once and let you download everything as one ZIP. The site works on Windows, Mac, iPhone, iPad and Android, in any modern browser. Not sure what a file is or which format to choose? Look it up in the file format library or read a comparison guide such as PNG vs JPG or HEIC vs JPG.