How to open a JSON file online
Three steps, a few seconds, no software.
Open your .TPL file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .TPL file opens as a tidy, foldable tree, with the exact line of any error pointed out.
Search, copy or download
Search keys and values, copy any path or value, switch to a table, or download a clean copy.
What is a .TPL file?
The most common data format on the web.
A TPL file is a template, a reusable pattern a program uses to create new documents, layouts, or designs. There is no single TPL format; open it in the application that created it. Web-based TPL files (Smarty/PHP templates) are plain text you can edit in VS Code or Notepad++. Graphics, game, and firmware TPL files are binary and require their original software.
Programs that open .TPL files
| Full name | Template File |
|---|---|
| Developer | Various application vendors (no single owner — a generic convention) |
| First released | Long-standing per-application convention for storing reusable document/layout templates |
| Category | Text & Code |
| MIME type | text/plain |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .TPL file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .TPL file is invalid. Can you fix it?
We show the exact line and column of the first error. For common problems like comments, trailing commas, single quotes or Python-style True/False/None, click Try to repair and download the fixed file.
How large can the file be?
Up to 50 MB. The tree only builds the branches you open, so even multi-megabyte files stay responsive.
What is JSONPath?
A path like $.orders[3].customer.email that points to one value inside the data. Click any node to see its path and copy it for code, jq or your API docs.
Can I see my data as a table?
Yes. Any array of objects can be shown in the Table view and downloaded as CSV.
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