Answers before you ask
Strong links between columns, missing values, outliers and duplicate rows show up on the first screen.
Understand any spreadsheet in minutes.
Sift Workbench turns a CSV or Excel file into a clear picture of your data. See what is in every column, spot problems, chart patterns and find answers. Your file stays in your browser.
The Explore view on a sample retail dataset. Hover any point for exact values.
What Sift does
Sift Workbench is a data analysis tool that runs in your browser. Drop in a spreadsheet and it works out what each column holds, how complete it is and what stands out. Then you can filter, chart, edit values, add calculated columns, and save the whole thing as a project for next time.
From file to answers in four steps
- STEP 1
Open a file
Drop in a CSV, TSV or Excel workbook, paste rows, or start from a sample. Workbooks with several sheets get a sheet picker.
- STEP 2
Read the overview
Every column is listed with its type, how much of it is filled in and the shape of its values. The strongest links, gaps and outliers are called out in plain words.
- STEP 3
Explore and clean up
Filter rows, draw bar, line, scatter and histogram charts, edit cells, and add columns with formulas.
- STEP 4
Keep your work
Save a project to come back to it, or download the result as CSV or Excel.
Built for the first look at your data
The checks an analyst runs by hand, ready as soon as the file opens.
Charts without setup
Pick the columns and Sift draws the chart. Hover for exact values, or switch to the data view to see the numbers behind it.
Filters that apply everywhere
Narrow to one region, a date range or the rows with gaps. Every chart, table and summary follows.
Edit and calculate
Fix a value in place, add a row, or build a column such as revenue per unit with a formula.
Saved projects
Return to a dataset with its filters, charts and edits as you left them. Projects are saved in your browser on this device.
Download your work
Export the filtered rows, with your edits and new columns, as a CSV or Excel file.
Where people use it
Any table that someone sent you, or that you exported from somewhere else.
Sales and orders
- You have
- A monthly export from a shop or CRM.
- Sift shows
- Revenue by month and region, the biggest product lines, and orders with missing ratings.
Messy exports
- You have
- A file from another team that you did not build.
- Sift shows
- Empty cells, duplicate rows and odd values, found before they reach a report.
Surveys and research
- You have
- Responses from a form or a study.
- Sift shows
- The spread of each answer, which columns move together, and where groups differ.
Finance and expenses
- You have
- Statements, ledgers and spending logs.
- Sift shows
- Totals by category, unusually large amounts, and a calculated column for the figure you need.
Classes and coursework
- You have
- Scores, attendance and study hours.
- Sift shows
- Whether hours studied relate to results, on a scatter plot with a trend line.
Quick checks
- You have
- A file someone just sent you.
- Sift shows
- What it holds in under a minute, without opening Excel.
Your data stays yours
Sift is in early access. Keep your own copy of anything important and download your work when you finish.
Analysis happens in your browser
Files are read on your device and are not uploaded to a server for analysis.
Saved projects are private
Projects are saved in your own browser on your own device. They are never sent to a server.
Nothing to sign up for
There are no accounts and no tracking built into Sift. Open the page and start.
Your original file is untouched
Sift works on a copy in your browser. Edits only reach a file when you download the result.
Questions
Which files can I open?
CSV, TSV, Excel (.xlsx, .xlsm, .xls and .xlsb) and OpenDocument spreadsheets (.ods). You can also paste rows straight in.
How big can a file be?
Up to 40 MB. Sift analyzes the first 100,000 rows of a file.
Is it free?
Yes. Sift is free while it is in early access.
Do I need to install anything?
No. Sift runs in a web page.
Can I keep my work?
Save a project to reopen it later with its filters, charts and edits. You can also download the current table as CSV or Excel.
Does it change my original file?
No. Sift works on a copy in your browser. Your original stays as it was.