Convert Primary Key Finder Online
Find unique identifiers, composite keys, and almost-keys that fail due to blanks or duplicates. Use Primary Key Finder in your browser with no signup, no daily limit, and no backend processing for tool input.
Problem
You need to move data through Primary Key Finder without writing a script or uploading the source file to another service.
What to do
Primary Key Finder is useful when a format mismatch blocks the next step. Convert the data, inspect the preview, then continue into validation, cleanup, or export.
- 1Paste or upload the source data into Primary Key Finder.
- 2Confirm the format options and preview the result.
- 3Copy or download the converted output.
Example
Example source input
Source data with headers, fields, and nested values
Example converted output
Converted data ready to copy, download, or continue into another tool.
Use the browser tool
Primary Key Finder is a free, browser-based tool that helps you convert between formats. Find unique identifiers, composite keys, and almost-keys that fail due to blanks or duplicates. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.
People also ask
- How do I use Primary Key Finder?
- Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Find unique identifiers, composite keys, and almost-keys that fail due to blanks or duplicates.
- Is my data uploaded or stored anywhere?
- No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.
- Is Primary Key Finder free?
- Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.