FREE TOOL · NO SIGNUP
Check the numbers.
Then trust the AI summary.
Find the real sales peak, count the rows and verify percentage changes in a CSV. This is a deterministic checker—not another AI opinion.
Runs in your browser No file upload to a server
1. Start with a CSV
Try the synthetic 12-month example, paste CSV text or select a local CSV. Files are limited to 1,000,000 bytes; pasted text to 1,000,000 UTF-16 code units. The checker accepts up to 10,000 data rows plus a header and 50 columns. Use plain numbers without currency symbols or thousands separators.
2. Choose what to check
For decimal commas, use semicolon-separated CSV or quote each number. Rows stay in file order; this tool does not infer dates or aggregate repeated labels.
3. Compare with the AI answer
Highest value — all ties
Lowest value — all ties
Check a percentage change
The report contains your selected labels and values. Keep it private if your data is private. These are numeric checks, not accounting advice or evidence of causation.
Why we built this
In our saved Julius 1.2 Lite example, the chart showed November as the sales peak at TRY 342,800, while the written answer named May at TRY 226,400. The sample contains 12 monthly rows. One saved response also described it as five months.
The response correctly identified the March sales decline: from 197,500 to 121,000, about 38.73%. That does not establish why sales fell.
This is one historical saved example with an unestablished session date, not a benchmark of today's Julius model or a measured error rate. You can use this checker with output from any AI tool.
Download the synthetic sample CSV · Read our Julius example and offer notes
Watch the 32-second walkthrough
This is a recording of our checker using synthetic data, not a new Julius test. It shows the 12-row example, the sales peak and the February-to-March change. The captions are built into the silent video; optional English and Turkish text tracks are also available.
Read the walkthrough transcript
- Open the checker and load the synthetic 12-month example.
- Read the columns. Choose Ay for labels and Satis_TL for numeric values.
- Run checks. All 12 rows are numeric. Kasim (November) is the maximum: TRY 342,800.
- Choose Subat (February) as the starting row and Mart (March) as the ending row. Sales change from TRY 197,500 to TRY 121,000, a decline of about 38.73%.
- A calculated change does not establish a cause. Check the underlying data before trusting an explanation.
A simple verification checklist
- Check the number of rows and whether any numeric values were excluded.
- Compare the highest and lowest values with the AI's written conclusions.
- Select the same two rows when checking a claimed percentage change.
- Treat suggested causes as hypotheses unless the source data supports them.
- Worked example: (121,000 − 197,500) / 197,500 × 100 = −38.73%. The checker uses the absolute starting value in the denominator; zero has no defined percentage change. It does not group repeated labels or establish why sales changed.
Privacy and limits
The checker code reads your file in this browser and makes no requests containing its contents. It uses no cookies, local storage, AI API or external library. Normal page delivery still involves your hosting provider. Clearing the input does not delete the original file or a downloaded report.
Missing or invalid numbers are reported and excluded, never converted to zero. Duplicate labels are flagged, not combined. Percentage change from zero is undefined. Calculations use ordinary JavaScript numbers; use specialist tools for high-precision financial work.
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Kuponaut may earn a commission from eligible purchases through affiliate links on its offer pages. This checker has no paid placement and does not rank AI products.