# eBay/tsv-utils

eBay's TSV Utilities: Command line tools for large, tabular data files. Filtering, statistics, sampling, joins and more.

Repository: https://github.com/eBay/tsv-utils
Canonical: https://ross.abutalabs.com/products/tsv-utils
Homepage: https://ebay.github.io/tsv-utils/
Language: D
License: BSL-1.0
License Family: other
Topics: csv, command-line, dlang, data-science, tabular-data, cli, delimited-files, sampling, tsv, statistics, d, reservoir-sampling, data-mining, shuffle, uniq
Last push: 2022-09-14T17:43:16+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3801, "days_push": 1449, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1482, forks 83 (observed 2026-08-28T04:04:51.178604+00:00)

## What it is
A suite of command line utilities from eBay for manipulating large tabular (TSV/CSV) data files, written in D. It provides fast filtering, sampling, statistics, joins, deduplication, and splitting, often outperforming comparable tools.

## Use cases
- filter large tsv files from the command line
- compute statistics on tabular data files
- sample or shuffle large data files
- join two tsv files on a key
- convert csv to tsv
- deduplicate rows in a delimited file
- split large data files into chunks

## When to choose
- you process very large TSV files and need fast Unix-style tools
- you want command line filtering, joins, and statistics without writing scripts
- you prefer TSV's simple format that works with standard Unix tools

## When to avoid
- you need rich CSV escape handling or JSON support - consider Miller or csvkit instead
- you need an actively developed tool - the latest release is from 2022
- you need a GUI or interactive data analysis environment

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: cli, data-science, csv, math, developer-tools
- domain: data-science, files, analytics
- platform: cli, windows, cross-platform
- tags: tsv, tabular-data, dlang, data-mining, sampling, unix-tools, command-line, linux, macos

## Member repositories
- eBay/tsv-utils (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:51.178604+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:34:06.450091+00:00, confidence not recorded.
  - readme: https://github.com/eBay/tsv-utils (fetched 2026-08-28T04:04:51.178604+00:00, sha 439f24aae90d)
  - homepage: https://ebay.github.io/tsv-utils/ (fetched 2026-08-29T11:40:41.439886+00:00, sha 0ee827c7484e)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/Performance.html (fetched 2026-08-29T11:40:41.449940+00:00, sha 662e6e018a54)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/ToolReference.html (fetched 2026-08-29T11:40:41.452023+00:00, sha 80f04e19c9a7)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/TipsAndTricks.html (fetched 2026-08-29T11:40:41.453810+00:00, sha 0d0c836e22ab)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/comparing-tsv-and-csv.html (fetched 2026-08-29T11:40:41.456692+00:00, sha 5aac761ae168)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/BuildingWithLTO.html (fetched 2026-08-29T11:40:41.458386+00:00, sha 90c142f2994f)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/AboutTheCode.html (fetched 2026-08-29T11:40:41.460157+00:00, sha 1346b2911f1e)
  - site_page: https://opensource.ebay.com/tsv-utils/docs/OtherToolkits.html (fetched 2026-08-29T11:40:41.461716+00:00, sha 0c2dbee6dafc)
- Data as of 2026-08-30T08:39:29.467469+00:00.