HAR Viewer: Inspect DevTools Logs in Your Browser
Open a HAR export, read each network entry, and copy one request as cURL. Parse runs in your browser. FindUtils does not receive the file.
The HAR file stays in your browser. Analytics and ads may load on the page.
HAR input
Drop a .har file here or paste JSON below.
Limit 20 MB of text.
How to inspect a HAR file
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Export a HAR
In the browser network panel, save the log as HAR. -
Paste or drop
Drop the file or paste the JSON into this page. The limit is 20 MB. -
Inspect entries
Read method, URL, status, size, and time. The page does not render HAR as HTML. -
Copy cURL
Select one row and copy it as a cURL command.
Guides and articles
Read instructions and examples for this tool.
How to Debug a Failed HTTP Request From a HAR File
A practical debug path: save a HAR, inspect the table, copy one cURL, and send the public request again. Parse stays in the browser.
Test Webhooks Online with a Temporary HTTP Request Bin
Create a temporary receive URL and inspect webhook requests on one page. Learn the storage limits, header redaction, bin access model, and safe test-data rules.
HTTP Request Builder: Send Public HTTP Calls Safely
Set method, URL, headers, and body, then send to a public http or https host. Localhost and private ranges are blocked. Body limit is 64 KB.
Common Use Cases
Slow Request Review
Sort through network entries and compare the recorded duration and size of each request.
Failed API Inspection
Find requests with error status codes and inspect the request URL and method.
Request Reproduction
Select one entry and copy a cURL command for a controlled test outside the browser.
Network Log Handoff
Review a HAR from another person without loading its recorded pages or sending the file to FindUtils.
Why use this HAR viewer
A HAR file holds request URLs, headers, and bodies from a browser session. This page parses that JSON in your browser, shows a table, and builds a cURL command for the selected row. FindUtils does not receive the file. Analytics or ads on the page may still load.
A HAR file records browser network activity as JSON. FindUtils HAR Viewer reads that data and lists each request with its method, URL, response status, size, and recorded time.
Selecting an entry creates a cURL command from the recorded request. The command can include request headers and body data, but it excludes browser cookies and several connection-specific headers. Review the command before you run or share it.
Parsing stays in your browser, and the page does not render recorded HTML or replay requests. Use the HAR to cURL tool for a conversion workflow, or use the HTTP Request Builder for a controlled public-endpoint test.
How it compares
Browser network panels are best during a live session. FindUtils HAR Viewer opens a saved log and creates cURL for one selected request, but it does not show response bodies or replay traffic.
A dedicated network client can send and organize requests, while this viewer only reads the supplied archive. Use cURL to Code when you need to turn the reviewed command into application source.
HAR Review Tips
- Remove passwords, tokens, cookies, and personal data before you share a HAR file.
- Keep the input below the 20 MB text limit.
- Select the exact request row before you copy cURL.
- Review the generated cURL before you run it because request headers or body data can be sensitive.
- Use a different tool when you need response body inspection or request replay.
Frequently Asked Questions
Does this upload the HAR?
No. FindUtils parses the HAR in your browser and does not upload or store the file. Analytics and ads may still load on the page.
What is a HAR file?
A HAR file is HTTP Archive JSON from a browser network panel. It can contain request URLs, headers, cookies, bodies, timing data, and response metadata.
Can I replay a request?
No. FindUtils HAR Viewer creates a cURL command for the selected request. It does not send or replay the request from a FindUtils server.
Is there a size limit?
Yes. The browser viewer accepts up to 20 MiB of HAR text. Reduce or split a larger archive before inspection.
Does this replace HAR to cURL?
The viewer shows the saved log before conversion. Select one entry when you want to copy its request as cURL.
Does the generated cURL include browser cookies?
No. Browser cookies are excluded from the generated command. Other recorded request headers and body data can remain, so review the command before use.
Can I inspect a response body?
No. The table shows response status, size, MIME type, and timing. It does not display a saved response body.
Which HAR shapes can the viewer read?
It reads the standard log.entries shape. It also accepts a top-level entries array or an array of entries.
Does the viewer remove secrets from a HAR?
No. HAR files can contain authorization headers, cookies, request bodies, and personal data. Remove sensitive values before you share the file or copied cURL.
Can I edit or save the HAR?
No. The tool reads entries and creates cURL for the selected request. It does not edit, save, or sanitize the source HAR file.