Troubleshooting

Clio upload not working?

Frozen uploads, "Something Went Wrong" errors, and browser crashes are common when uploading files through Clio's web interface. You are not alone, and there is a better way.

Fixes to try first Steadier on large files Free to try
Lucas Barnes By Lucas Barnes, Founder Last updated October 17, 2026
Watch the fixes

Every fix, in under five minutes

The same fixes as the problems below, one chapter per symptom, plus a chapter for the Mac. The video's description on YouTube lists the chapters and links the Clio help articles each fix comes from.

Common problems

Common Clio upload problems

If you have run into any of these, you are not alone. Here is what tends to cause each one — and the first things to try before reaching for another tool.

T.01

"Something Went Wrong" error

Clio shows a vague error after the upload fails — no explanation, no detail — and a retry gives the same result.

Try: Refresh and retry; then try a single file or a smaller batch, switch to a wired connection or another browser, and confirm the file isn't open in another program.

T.02

Slow or frozen uploads

The progress bar creeps or stops, the tab becomes unresponsive, and there's no clear signal whether it's still working.

Try: Close other heavy tabs, pause cloud-sync apps during the upload, and send large files one or a few at a time instead of all at once.

T.03

Bulk upload bogs down the tab

Pushing a lot of files through the web uploader at once can make the browser tab sluggish while it works through them.

Try: Upload in smaller groups rather than one giant batch — any in-browser uploader gets strained when dozens of files go at once. The web uploader isn't Clio's only native bulk option: Clio Drive's bulk file upload (its "Pending Upload Queue," on Windows and Mac) pushes large quantities into Clio in the background, though Clio cautions that moving files in bulk can freeze the system, so move them in smaller chunks.

T.04

Files are scattered across web portals

Clio's web uploader — including its multi-file and folder-upload options — works on files already saved to your computer, so anything in a court portal, an email, or a cloud link has to be downloaded first.

Try: Download them and use Clio's multi-file or folder upload, or skip the download step with a browser tool that sends a file straight from the web page into the matter.

T.05

ZIP file stays zipped

You upload a .zip to Clio and it lands as a single .zip, so you still have to download it, extract it locally, and re-upload each file.

Try: Extract the zip on your computer and upload the contents, or use a tool that auto-extracts each file into the matter on upload.

T.06

Sync and connection errors

Files won't sync between Clio Drive and your computer, or an upload stalls because of a cloud-storage conflict.

Try: For Clio Drive specifically, see the Clio Drive troubleshooting guide; for OneDrive or Dropbox conflicts, pause the sync client while the upload runs.

T.07

Drag and drop won't take the file

You drag a file onto Clio's Documents page and nothing uploads, or the browser opens the file instead.

Try: Drop it onto the documents table itself: Clio accepts dragged files and folders there, in the main Documents tab or a matter's Documents subtab. If the drag starts in another program rather than a folder on your computer, such as an email client or a web page, save the file to your computer first. Or skip the drag: + New → Upload files does the same job.

T.08

A folder upload is refused

Uploading a whole folder through the web works for a small folder but won't go through for a large one, even though no single file in it is big.

Try: Clio caps a folder uploaded through the web at 5 GB in total, on top of the 5 GB per-file limit. Split the folder into smaller batches, or copy it into Clio Drive instead: Clio Drive has no folder size limit as long as each file inside is under 5 GB. The limits are covered in Clio storage and file size limits.

T.09

A document won't open after upload

Clicking a file on Clio's current Documents page shows a preview you can read but not edit, or the copy you expected in Word never appears.

Try: The preview is read-only by design. To edit, open the file's actions menu, choose Open in, and pick Document Editor (in the browser) or Clio Drive (Word, or whatever program the file belongs to). The option you pick last becomes what a double-click does. Clio Drive needs the Clio desktop app installed and running, and can take a moment to open if it hasn't been used recently. If the file opens in protected mode, approve Clio Drive as a trusted location in your computer's settings.

T.10

File Explorer or Finder freezes when copying into Clio Drive

You paste a large batch of files into a Clio Drive folder and File Explorer (Windows) or Finder (Mac) stops responding.

Try: Clio itself warns that moving files in bulk can freeze the system and recommends smaller chunks. Watch progress in the Clio desktop app under Drive → Pending Upload Queue: a file is in Clio Manage once it shows a green checkmark. For folders holding thousands of files, lower the folder item display limit in Clio Drive's settings. Clio suggests 3,000 as a starting point, and 5,000 files in one folder is the top of its recommended range.

T.11

Files missing from Clio Drive, or names cut short

A file shows in Clio Manage but not in Clio Drive, or its name in Drive is shortened to a few characters and a number.

Try: That's the operating system's path-length limit, not a failed upload. Windows caps a file's full name and folder path at about 250 characters (Mac allows far longer), so deep or long-named folders can hide files in Drive or show a shortened display name; the document in Clio Manage is unaffected. On Windows, turn on the option to shorten matter-folder names in Clio Drive's settings. When the two disagree, Clio says to treat Clio Manage as the source of truth.

On a Mac

Clio upload not working on a Mac

Clio's web uploader behaves the same on a Mac as on Windows, in Safari or Chrome, with the same 5 GB limits, so the fixes above apply as they are. Mac-specific trouble almost always involves Clio Drive, the desktop app. Four things to check:

  1. Complete the certificate prompt. After you install or update Clio Drive, macOS may ask you to allow the connection and show an SSL certificate prompt from Clio. Click Show certificate, check Always trust Clio Drive, continue, and enter your Mac's password. Once it's trusted, the prompts stop.
  2. Check the requirements. Clio Drive needs macOS 11 (Big Sur) or later and at least 5 GB of free disk space. Clio recommends a recent macOS and 8 GB of RAM or more.
  3. Reopen it after a restart. Clio Drive disconnects whenever the Mac restarts or shuts down. Turn on the setting that starts the Clio desktop app at startup so it's ready when you need it.
  4. Reinstall cleanly if files still don't show. In the desktop app, open Drive, then Settings, and choose Quit. Move Clio Desktop from Applications to the Trash and empty it, then reinstall from Documents → Desktop access → Install for Mac in Clio Manage.

For sync problems beyond uploads, see the Clio Drive troubleshooting guide.

The difference

How Send to Case solves this

Instead of fighting Clio's web uploader, skip it entirely.

✕ THE OLD WAY

Uploading files through Clio's web interface:

1 Download the file to your computer
2 Open Clio, find the right matter
3 Navigate to the correct folder
4 Click upload, browse for the file
5 Wait and hope it does not freeze
6 If it fails, start over from step 1
Large uploads can stall, and a failure means starting over.
✓ WITH SEND TO CASE

Right-click the file link and send it straight to Clio:

1 Right-click any download link
2 Pick your matter and folder
✓ Done — it's in Clio!
✓ Files stream directly to Clio, chunk by chunk, instead of loading whole in one tab
✓ Files never touch your Downloads folder
✓ Batch uploads process files one at a time, so the tab stays responsive
Steadier uploads, fewer stalls.
A different approach

Why a browser-streaming upload behaves differently

What Send to Case does differently when the web uploader keeps stalling.

01

Streaming uploads

Files stream from the source straight to Clio in chunks, so a large transfer doesn't have to sit in one browser tab all at once — which is where in-browser uploads tend to bog down.

02

Sequential batch processing

When uploading multiple files, Send to Case handles them one at a time in sequence, so a big batch puts less strain on the tab than firing everything at once.

03

No download step

Files go from the source website directly to Clio. You never download to your computer first, so there is no file to manage, no disk space used, and no re-upload needed.

04

Automatic ZIP extraction

Upload a ZIP file and Send to Case extracts every file inside, uploading each one individually to your matter. No manual extraction needed.

05

Files up to 5GB

Send to Case supports files up to 5GB — the same per-file ceiling Clio sets. The streaming approach is aimed at reliability on large files, not a higher limit.

06

Direct and secure

Files go straight from your browser to Clio's servers. We never see, store, or have access to your documents. Your data stays private.

How it works

How to upload files to Clio without errors

Four steps to leave upload problems behind.

1

Install extension

Add Send to Case to Chrome from the Web Store. Takes about 30 seconds.

2

Connect to Clio

Sign in with Clio credentials. Secure OAuth — we never see your password.

3

Right-click file

Right-click any download link on any website and select "Send to Clio".

✓

Select matter

Search for your matter, pick a folder, file uploads directly to Clio.

Security & privacy

Built for security-conscious firms

Your client data deserves protection. Here's how we keep it safe.

§

Direct upload

Files travel straight from your browser to Clio. They never touch our servers.

§

Official OAuth

We use Clio's official authentication. Your password is never visible to us.

§

Local storage

Your matter list stays in your browser. A few settings sync through your browser account, never to our servers.

§

Privacy first

File names are replaced with codes in error reports, and your files never reach us.

Troubleshooting FAQ

Common questions about Clio upload problems

Got more? Email [email protected].

Q.01

Why does Clio keep saying "Something Went Wrong"?

+

A "Something Went Wrong" error during an upload usually comes down to a large file, an unstable or slow network connection, a browser tab that is already low on memory, or a server-side timeout. The first things to try: refresh and upload again, try one file (or a smaller batch) at a time, switch to a wired connection or a different browser, and make sure the file isn't open in another program. If it keeps happening on large files, a tool like Send to Case that streams the file straight to Clio can be steadier than the in-browser uploader.

Q.02

Why does my Clio upload freeze?

+

Uploads can stall when you push a large file, or a lot of files, through a single browser tab at once — the tab gets busy and can become sluggish or unresponsive. It's most noticeable on large files or when uploading many files in one go. Closing other heavy tabs, pausing cloud-sync apps (like OneDrive or Dropbox) during the upload, and uploading in smaller groups usually helps. If large files routinely stall, streaming them straight to Clio with a browser tool avoids holding the whole file in one tab.

Q.03

Can I upload multiple files without the browser bogging down?

+

Yes. Send to Case uploads files one at a time in sequence, so a big batch puts less strain on the tab than sending everything at once. You can batch upload dozens of files from a webpage or drag and drop multiple files into the extension, and they each upload individually to your matter. (Clio's own web uploader does support multi-file select and folder upload too — the difference is that Send to Case can also pull files straight off a web page without downloading them first.)

Q.04

Why won't Clio let me drag a file in?

+

Clio's web Documents page accepts dragged files and folders, but only when you drop them onto the documents table itself, in the main Documents tab or a matter's Documents subtab. If the drag starts in another program rather than a folder on your computer, such as an email client or a web page, it may not arrive as a file: save it to your computer first. Or skip the drag: + New, then Upload files, does the same job.

Q.05

What is Clio's upload size limit?

+

5 GB per file, whether you upload through the web or Clio Drive. A folder uploaded through the web Documents page is also capped at 5 GB in total, so a big folder of small files can still be refused. Copying a folder into Clio Drive has no folder size limit, as long as each file inside is under 5 GB.

Clio storage and file size limits

Q.06

Why can't I open a document in Clio's new Documents page?

+

Clicking a file name opens a preview panel you can read but not edit. To edit, open the file's actions menu, choose Open in, and pick Document Editor (edits in the browser) or Clio Drive (opens it in Word or whatever program the file belongs to). The option you choose last becomes what a double-click does. Opening in Clio Drive needs the Clio desktop app installed and running, and it can take a moment if the app hasn't been opened recently.

Q.07

Why is my Clio upload not working on a Mac?

+

The web uploader works the same on a Mac as on Windows, in Safari or Chrome, with the same 5 GB limits, so try the general fixes first. Mac-specific trouble usually involves Clio Drive: complete the certificate prompt macOS shows after you install or update it (Show certificate, check Always trust Clio Drive, enter your Mac's password), remember that Clio Drive disconnects when the Mac restarts, and if files still don't appear, quit the app, move Clio Desktop from Applications to the Trash, and reinstall it from Documents, then Desktop access, in Clio Manage.

Q.08

Is Send to Case an official Clio tool?

+

No, Send to Case is a third-party Chrome extension built specifically for uploading documents to Clio. It connects through Clio's official OAuth API, which means your login credentials and documents stay secure. We are not affiliated with, endorsed by, or sponsored by Themis Solutions Inc. (the company behind Clio).

Q.09

Does Send to Case replace Clio Drive?

+

Send to Case and Clio Drive solve different problems. Clio Drive is a virtual drive that streams your documents from Clio's cloud — it needs a live connection and keeps a local cache, rather than storing a full synced copy on your computer — which is handy for opening and editing files locally. It does more than in-place editing, too: its bulk file upload feature (the "Pending Upload Queue," on Windows and Mac) can push large quantities of documents into Clio in the background, so the web uploader isn't your only native bulk option. Clio does caution that moving large amounts of files in bulk can freeze the system, so it suggests moving files in smaller chunks. Send to Case, by contrast, lets you upload files directly from any website to Clio without downloading them first. Many users use both - Clio Drive for local editing and background bulk intake, and Send to Case for grabbing files from court portals, email attachments, and other websites.

Q.10

Is Send to Case really free?

+

Yes. The free tier includes 10 uploads per month with no credit card required. That is enough to try it out and see if it solves your upload issues. If you need unlimited uploads, Pro is $19/month or $190/year (two months free). You can start on the free tier today and upgrade later if it works well for your workflow.

Q.11

If a bulk upload fails partway, what happens to the files that already uploaded?

+

The files that finished are already real documents in the matter — uploads happen one at a time, so completed files are not affected by a later failure. A file that was interrupted mid-upload can leave an empty or incomplete entry behind. Send to Case only ever adds to Clio — it never deletes anything from your matters — so it cannot tidy those up for you. Just re-run the upload for whatever is missing (matching names make the gaps easy to spot), and if an interrupted file left a stray entry, remove it yourself in Clio's Documents area. The no-delete behavior is deliberate: a tool that could auto-delete to 'clean up' is a tool that could delete the wrong client document.

Q.12

Can I resume a ZIP that only partly uploaded?

+

Sometimes. If you sent a ZIP from a link with Send to Case and only some of its files reached Clio, the results screen can show a "Resume this ZIP" button under the failed ZIP. It checks Clio for which files already arrived, then uploads only the missing ones into the same folder, and never uploads a file that is already there. If it can't confirm from Clio that this is safe from duplicates, it refuses and uploads nothing, and you upload the missing files yourself. Send to Case never deletes anything from Clio, so an incomplete entry left by a file that was cut off stays until you remove it in Clio's Documents area.

Related guides

Keep going

Ready when you are

Stop fighting upload errors

Install Send to Case and stream files straight to your Clio matters — fewer stalls on large files, and no download-then-re-upload dance.

Free tier includes 10 uploads/month. See pricing