Open RDS files in your browser

The file R saves one object in, most often a data frame. Open one right here and see its rows, with no R or RStudio. Nothing leaves your device.

Or drop it anywhere on this page

What you'll see

Your R data opens as its objects, each with its kind and first values, without R.

survey_2026.rds

RDS • Data frame • 1,240 × 18 • 86.3 KB

  • Every object • Its class, size and first values
  • Each data frame or matrix opens as a table
  • Lists and attributes unfolded in the Tree
  • Export • Save a table as CSV, Excel or Parquet

About RDS

R saves a single object with saveRDS as a .rds file, and analysts, packages and courses share data frames, models and lists this way. readRDS reads it back in R, and Python reads it with pyreadr or rdata.

An RDS is R's serialization: each object's type, its attributes, such as names, class, factor levels and row names, and its values, packed with gzip unless it was saved with bzip2, xz or nothing. Version 3, from R 3.5, adds the text's encoding and R's compact vectors.

Filepeek reads the file itself and never runs R or anything in it. The Workspace shows the object with its class and size, a data frame or matrix opens as a table, factors by their levels and dates as dates, to save as CSV, and lists unfold in the Tree.

R object file

Format

MIME type
application/octet-stream
Made by
The R Project

Inside the file

Holds
One R object
Packing
gzip, bzip2 or xz
Versions
2 and 3
Made by
saveRDS

Opens in every browser

Filepeek opens RDS files in Chrome, Edge, Firefox and Safari. On their own, browsers only download them.

  • YouChromeOpens through Filepeek
  • YouEdgeOpens through Filepeek
  • YouFirefoxOpens through Filepeek
  • YouSafariOpens through Filepeek

Apps that open RDS

  • WindowsR and RStudio
  • MacR and RStudio
  • iPhone and iPadNo app opens it
  • AndroidNo app opens it

Questions

How do I open an .rds file without R?

Drop it on this page. Its object shows with its class and size, and a data frame opens as a table.

Can I turn an .rds into a CSV?

Yes. Open its table, then choose Export and Save as CSV, Excel, JSON or Parquet.

Is it safe to open an .rds someone sent me?

Here it is: Filepeek only reads its values and runs none of the code a file can hold. In R itself, a file made to do harm can run code as it loads, so open there only files you trust.

More scientific formats

All supported file types

Opens in a new tab

EXIF

Verify

License

Signature