Package

caterpillar

Caterpillar is the ultimate logging system for Deno, Node.js, and Web Browsers. Log levels are implemented to the RFC standard. Log entries can be filtered and piped to various streams, including coloured output to the terminal, the browser's console, and

v8.2.0, 29 Dec 2023Artistic-2.0ESM + CommonJSTypes: BundledLogging TypeScript tooling

$ npm install caterpillar

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 1.9k; -4% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 4; Direct, from package.json
Last release: 2 years ago; v8.2.0
GitHub stars: 402; 13 forks
Open issues / PRs: 6 / 0
Contributors: -
Commits, last 52 weeks: 13

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

1,861 downloads last week, 11,392 in the last month. The 12-month change of -4% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: -
Latest version: 8.2.0, 29 Dec 20232 years ago
First published: -
Last push to GitHub: 13 Sept 202612 days before the snapshot
Repository archived: No
Open issues: 6
Open pull requests: 0
Commits, last 52 weeks: 13
Dependents on npm: 11

Major versions

Recent releases

Compatibility

Module format: ESM + CommonJSFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: >=4
Runtimes: -
Unpacked size (npm): 232 kB
Dependencies (4): editions@bevry/ansirfc-log-levelsget-current-line

Install

npm install caterpillar

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/caterpillar@8.2.0/
unpkghttps://unpkg.com/caterpillar@8.2.0/
esm.shhttps://esm.sh/caterpillar@8.2.0

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
loglayer A modern logging library with a fluent API for specifying log messages, metadata and errors	104k	-	2 months ago	ESM + CommonJS	-
missionlog 🚀 lightweight TypeScript abstract logger • level based filtering and optional tagging • supports both ESM & CJS	25.6k	-	3 months ago	ESM + CommonJS	-
kliedz Dead-simple, stateless logging utility for JavaScript and TypeScript. Pure functions. No dependencies. Just log.	22.8k	-	22 days ago	ESM only	-
@tsed/logger A multi channel logger written in TypeScript.	37.7k	-	6 months ago	ESM + CommonJS	-
ts-log-debug A multi channel logger written in TypeScript.	9.8k	-	6 years ago	CommonJS	-
@tsed/logger-std Stdout and Stderr appender module for @tsed/logger	5k	-	6 months ago	ESM only	-
@tsed/logger-file File appender module for @tsed/logger	11.9k	-	6 months ago	ESM only	-
tslog Extensible TypeScript Logger for Node.js and Browser.	1.7m	-	13 days ago	ESM only	-

Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Not indexed (discovery only): downloads_week 1861 < 10000.