Fill empty cells in CSV files using forward fill, backward fill, fixed value, or column average. Preview changes per column before downloading the completed dataset.
Open Fill Incomplete Records → free, no sign-inReal-world CSV exports often contain gaps — cells that should have a value but don't because the source system left them empty. The Fill Incomplete Records tool fills those gaps using configurable strategies: forward fill (carry the previous value down), backward fill, a fixed custom value, or the column's average. Preview the changes before committing, download the completed dataset.
Data analysts and data engineers dealing with incomplete datasets before analysis or import — specifically the kind of gaps that represent missing measurements, carry-forward values, or incomplete survey responses rather than genuinely absent data.
No tutorials. No learning curve. Open it and get started.
No server uploads. Fills can be applied per column with different strategies — so you can forward-fill one column and use a fixed value for another.
Completely free. No trial period. No premium tier for basic functionality. No account required. Use it as often as you need.
One job, done well. Fill Incomplete Records was built to solve a specific problem cleanly. No feature bloat, no ads, no distractions.
What is forward fill?
It carries the most recent non-empty value down through subsequent empty cells — common for time series data.
What is backward fill?
It carries the next non-empty value back up through preceding empty cells.
Can I use different strategies for different columns?
Yes — each column is configured independently.
What if the first value is empty for forward fill?
Empty cells at the start of a column with no preceding value to carry forward will remain empty.
Is the original file modified?
No — you download a new filled file.
Free. Instant. No sign-in. Open it and get the job done.
Open Fill Incomplete Records on Doathingy.com →