CSV viewer — open CSV files in your browser
Drop a CSV and read it as a clean, sortable, searchable table. The file never leaves your device — parsing runs entirely in your browser.
Click to upload or drag and drop
Drop your CSV, Excel, or JSON file
Max 10MB
Runs 100% in your browser — this page makes no network request with your data.
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Drop a .csv (or .tsv) file into the box — no signup, no upload.
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Sort any column, search across rows, and page through large files.
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Need analysis, not just viewing? Send the file to the workspace with one click.
Worked example: checking a 12MB subscriber export before import
A lifecycle marketer exports 40,000 contacts from Mailchimp as a CSV and needs to confirm the file is clean before importing it into a new CRM. Opening it in Excel would risk mangling the phone numbers and the zip codes with leading zeros, so instead they drop the file straight onto the CSV viewer.
The whole table renders in the browser. They sort by the signup-date column to see the newest contacts, search for a specific domain to spot test accounts, and page through to confirm the header row and column count match what the CRM import expects. Because parsing runs locally, the subscriber list never leaves their laptop, which matters when the data includes personal email addresses.
Once the file checks out, they click "Turn this into a report" to send it to the workspace, where they can chart signups by source and build a shareable summary for the team.
Frequently Asked Questions
Everything you need to know about using AnalyzeData.
Yes — the file is parsed by JavaScript in your browser and never transmitted. You can verify this in your browser's network tab: no request carries your data.
Files up to about 10MB / 50,000 rows open smoothly in most browsers. Beyond that, split the file first — our CSV splitter handles that, also in-browser.
That is exactly what this page is for: a fast table view without installing anything or fighting Excel's type mangling (leading zeros, dates, long numbers all display as-is).
Yes. The viewer runs entirely in your browser, so there is nothing to install and no admin rights to request; it works the same on a locked-down work laptop or a Chromebook. Your file is parsed by JavaScript on your own machine and never uploaded, which is often exactly what makes it usable where IT blocks desktop apps.
Drop the file here and read it as a table first. Sort a column to surface blank or malformed values, search for test rows, and confirm the header names and column count match what the destination tool expects. Catching a shifted column or a stray delimiter here saves a failed import later, and nothing uploads while you inspect it.
When a table isn't enough
The workspace runs verified AI analysis on the same file and turns the results into a report you can send.
Analyze this data instead