Local
Works in your Mac, Windows, or Linux.
Nimble Platform / Powerful Utilities
Nimble Viewer
Free desktop app for clinical data review
Nimble Viewer is a free, fast, local, read-only desktop app for Windows, Mac, and Linux for clinical dataset review.
Explore Clinical Data Faster
Nimble Viewer is a free, local, read-only desktop app for clinical data exploration and review.
Open common study files, explore them quickly, filter and sort without code, inspect metadata, and convert what you need into convenient formats.
Open SAS, XPT, CSV, Excel, Parquet, CDISC Dataset-JSON, and Define-XML files, filter and inspect data in seconds, and review columns and metadata without moving files to a server.
Fast
Open largest of files in split seconds.
Read Only
Designed for Clinical Data Exploration.
Multi-Format
Support mainstream file formats.
Review Quickly
Answer questions faster directly from source data.
Filter Fast
Narrow rows quickly without writing code.
Sort Clearly
Reorder records instantly to surface what matters.
Shape Columns
Hide, pin, and rearrange variables for cleaner review.
Fast Facts
Inspect counts, and distribution rapidly.
All your Data
SAS Formats
Open .sas7bdat and .xpt for day-to-day dataset review.
Define-XML
Open Define-XML with its stylesheet and review it inside the app.
Dataset-JSON
Review CDISC Dataset-JSON in the same fast viewer workflow.
CSV, Excel, Parquet
Work with CSV, Excel, and Parquet in one consistent experience.
Convert Easily
Export What You Need
Convert the current data view into practical working outputs.
Convenient Formats
Convert to CSV or Excel for downstream review and collaboration.
Filtered Results
Export filtered data when you want to share just the relevant slice.
Keep Source Untouched
Create a working copy without changing the original file.
Free Download
Available across operating systems.
See Nimble Viewer's Terms of Use and Privacy Policy.
Nimble Viewer 0.1
Frequently Asked Questions
Is Nimble Viewer free?
Yes. Nimble Viewer is a free desktop app.
Does it upload our data?
No. Nimble Viewer is built for local review on your machine.
Can it be used to edit any files?
No. It is designed for exploration and review, not source editing.
What files can it open?
Nimble Viewer supports SAS datasets, SAS transport files, CDISC Dataset-JSON, Define-XML, CSV, Excel, and Parquet.
Can I filter and sort without coding?
Yes. You can filter, sort, and reshape the view directly in the app.
Can I inspect metadata while reviewing?
Yes. Nimble Viewer helps you review column details, data context, and dataset structure as you work.
Can I convert data into CSV or Excel?
Yes. You can convert the data you are reviewing into convenient working formats such as CSV or Excel.
Can I review Define-XML in the app?
Yes. CDISC's Define-XML v2.0 & 2.1 can be opened and reviewed inside the app.
Who is Nimble Viewer for?
Clinical programmers, biostatisticians, data managers, clinical reviewers, and study teams who need fast clinical data review.