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LLM Eval Viewer

Working

Lightweight viewer for LLM evaluation JSONL files

What it's for

  • inspect LLM eval JSONL predictions
  • preview custom JSON or CSV eval dumps
7 GitHub starsPushed Runs in the browser157 checksDeveloper utilities
Open LLM Eval ViewerSourceChecked dynamicheart.github.ioLast change recorded

We have checked LLM Eval Viewer 157 times since 15 Sept 2026, and it answered every time. Its visible text has not changed since we started watching.

What it does

A browser viewer for evalscope review JSONL files. It can also open JSON, NDJSON, CSV, or TSV, detect fields, and show conversations with tool calls and Markdown. Sample data can be loaded to try the viewer without a file.

More in Developer utilities

Each answered its most recent check.

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What stands out

  • No account required
  • Free
  • Source is public

What we checked

  • App accessible

    The last check reached a working page.

  • Page rendered

    The last browser pass found a page that rendered.

  • Screenshot kept

    We captured a picture of the page.

  • Looked at by an agent

    An agent reviewed it. That is not a person.

Looked
8

8 browsers

Opened
20

20 browsers

Checks
157

157 checks

Watching
0

Nobody yet

Browsers on this site, not verified people.

Screenshot of LLM Eval Viewer
Screenshot from our last capture

Development

6 snapshots kept

Active

Commits landed in the last 90 days.

Evidence

Each bar is one request we made
Checks
157
Working · last 40
100%
Median response
323ms
Watching since
15 Sept 2026

Of the last 40 checks, 40 answered (100%); the latest was on . Median response 323 ms. Watching since .

Browser render check

Checked 1 month ago in a real browser

1 page rendered

How the browser check works

Activity

Watching since
Last content change
None seen yet
Unchanged for
48 days
Certificate expires
in 56 days
  • Went from slow to live3 days ago
  • Went from live to slow3 days ago
  • The TLS certificate was renewed20 days ago

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LLM Eval Viewer — still works
[![LLM Eval Viewer — still works](https://itstillworks.app/api/badge/llm-eval-viewer)](https://itstillworks.app/verify/llm-eval-viewer)