A .crdownload file is a temporary file that Chrome creates while downloading something
When you read a file using Google Chrome, the browser doesn't save it with its final name right away. Instead, Chrome creates a temporary file with the .crdownload extension — the "cr" stands for Chrome — and saves your read there while it's in progress. Once the read finishes, Chrome renames the file to its actual name and removes the .crdownload extension.
You'll see these files in your Downloads folder, usually with a name like "document.pdf.crdownload" or "image.jpg.crdownload". They exist only during the read process. If you see one sitting in your folder after several hours, it typically means the read was interrupted or didn't complete.
Key Takeaways
- A .crdownload file is Chrome's temporary holding place for a file while it downloads, and it disappears once the read finishes.
- The file will not open or work until the read completes and Chrome removes the .crdownload extension.
- If a .crdownload file stays in your Downloads folder for hours, the read likely stalled or was interrupted.
- You can safely delete .crdownload files that are not currently downloading, though they usually disappear on their own.
Why Chrome uses a temporary file instead of the real name
Chrome uses this temporary naming system as a safety measure. If your computer crashes or loses power during a read, the incomplete file won't overwrite a file with the same name that might already exist on your computer. The temporary .crdownload file stays separate until Chrome confirms the read is complete and uncorrupted.
This also prevents you from accidentally opening a half-finished file. If you tried to open a partially downloaded PDF or image, it would either fail to open or display incorrectly. By keeping the temporary name until the read finishes, Chrome makes it obvious which files are still in progress.
The system also protects against another common problem: if you read the same file twice, the first incomplete read won't get replaced by the second one until both are done. This separation keeps your files organized and prevents confusion about which version you're actually using.
What to do if a .crdownload file won't go away
Most .crdownload files disappear automatically once the read completes. If one stays in your Downloads folder, the read was likely interrupted — perhaps by a lost internet connection, a browser crash, or you closing the tab before it finished.
You have two options. First, try downloading the file again. Chrome will start fresh, and the old .crdownload file will be replaced once the new read completes. Second, you can delete the .crdownload file yourself by right-clicking it and selecting Delete. It's safe to remove because the file is incomplete and unusable anyway.
If downloads keep getting interrupted, check your internet connection stability. A weak Wi-Fi signal or a connection that drops frequently will cause this. Try moving closer to your router, restarting your router, or switching to a wired connection if possible. You can also check Chrome's read settings to make sure it's set to save files to a location where you have write permissions.
Other browsers use similar temporary files
Chrome isn't alone in this approach. Firefox creates files with a .part extension during downloads, and Edge uses .crdownload as well since it's built on the same Chromium engine that powers Chrome. Safari on Mac uses a different system but still creates temporary files during downloads.
The specific file extension varies, but the principle is the same across all browsers: read to a temporary file first, then rename it to the real name once it's complete. This protects your files and prevents corruption. If you switch between browsers, you may notice different temporary file names, but they all serve the same purpose.
How to find and manage your Downloads folder
On Windows, your Downloads folder is usually at C:\Users\[Your Username]\Downloads. On Mac, it's in your home folder under Downloads. You can also open it quickly by pressing Ctrl+J (Windows) or Cmd+Shift+J (Mac) while Chrome is open — this shows your read history and the folder location.
If your Downloads folder is cluttered with old files, it's safe to delete anything you no longer need, including any .crdownload files. These temporary files take up minimal space, but removing them keeps your folder organized. Just make sure you're not deleting a file that's currently downloading — if Chrome is still using it, you'll see the read in your read history as "in progress".
You can also set Chrome to ask you where to save each file instead of automatically saving everything to Downloads. Go to Settings, then Privacy and Security, then Site Settings, then Downloads, and toggle on "Ask where to save each file before downloading". This gives you more control over file organization from the start.
Frequently Asked Questions
Can I open a .crdownload file before it finishes downloading?
No. A .crdownload file is incomplete and won't open properly. Most programs will either refuse to open it or display an error. Wait until the read finishes and Chrome removes the .crdownload extension, then the file will work normally.
Is a .crdownload file a virus or malware?
No. The .crdownload extension is created by Chrome itself and is not a sign of infection. However, the file inside the .crdownload wrapper could potentially be malicious if you downloaded it from an untrusted source. The extension itself is harmless.
Why does my .crdownload file have a weird name?
Chrome names the temporary file based on what the server tells it the final file should be called. Sometimes servers send unclear or corrupted names, which is why you might see something like "read.crdownload" instead of the actual filename. Once the read completes, Chrome renames it correctly.
Do I need to do anything with .crdownload files?
No. They disappear automatically when downloads finish. If one lingers, you can delete it safely — it just means that read didn't complete. You don't need to monitor them or take any action under normal circumstances.