Structured Logging

for Every Runtime

Zero-dependency TypeScript logging with auto PII sanitization, native tracing, and seamless context propagation. Works in Bun, Node, Deno, Edge, and browsers.

Get Started Try Playground

vestig — live logs

Dependencies

<5KB

Gzipped

Native

Start Logging Smarter

Zero config. Zero dependencies. Infinite possibilities.

Read the Docs Star on GitHub

0Dependencies

<5KBGzipped

100%TypeScript

v0.22.0 — Latest Release

Structured Logging

for Every Runtime

Zero-dependency TypeScript logging with auto PII sanitization, native tracing, and seamless context propagation. Works in Bun, Node, Deno, Edge, and browsers.

Get Started Try Playground

vestig — live logs

Dependencies

<5KB

Gzipped

Native

Built for Modern Apps

Everything you need for production-grade logging, without the bloat. Type-safe, performant, and ready for any runtime.

Popular

Auto PII Sanitization

Automatically detects and redacts sensitive data like passwords, emails, credit cards, and API keys before they reach your logs. GDPR & HIPAA compliant by default.

Learn more about sanitization

inputuser data

detectpatterns

redactsensitive

outputsafe logs

Run Everywhere

Works seamlessly across Bun, Node.js, Deno, Edge runtimes (Vercel, Cloudflare Workers), and browsers. Automatic runtime detection with zero configuration.

See supported runtimes

⬢

Node.js

🥟

Bun

🦕

Deno

⚡

Edge

🌐

Browser

New in v0.17

Tracing + OTLP Export

Auto-instrument fetch() with one line. Export spans to Jaeger, Honeycomb, Vercel, and any OTLP backend. Zero manual span management needed.

Tracing guide

import { instrumentFetch } from 'vestig'
import { OTLPExporter } from 'vestig/otlp'
// One-line auto-instrumentation
instrumentFetch()
// All fetch() calls now create spans automatically
await fetch('https://api.example.com/users')
// → Span: "http.client GET api.example.com/users"

Context That Flows

AsyncLocalStorage-based context that automatically propagates through your entire request lifecycle. Correlation IDs, user context, and metadata flow effortlessly.

Context documentation

requestx-request-id

handler

service

database

Zero Dependencies

No external dependencies means tiny bundle sizes (<5KB gzipped), faster installs, and zero supply chain risks. Pure TypeScript, maximum performance.

See performance benchmarks

vestig

<5KB

pino

28KB

winston

89KB

bunyan

42KB

Gzipped bundle size comparison

Flexible Transports

Console, HTTP, File, Datadog, Sentry, and more. Create custom transports with a simple interface. Built-in batching and retry logic keeps your logs flowing.

Transport documentation

vestig

💻Console

🌐HTTP

📄File

🐕Datadog

🔴Sentry

See It in Action

From basic logging to distributed tracing, vestig handles it all with elegant simplicity.

basic-logging.ts

import→

configure→

log

import { log } from 'vestig'
// Simple structured logging
log.info('User logged in', {
  userId: 'user_123',
  email: 'user@example.com',
  method: 'oauth'
})
// Different log levels
log.debug('Debug information')
log.warn('Warning message')
log.error('Error occurred', { code: 'E001' })

Output

{"level":"info","msg":"User logged in","userId":"user_123","email":"user@example.com","method":"oauth","timestamp":"2025-01-15T10:30:00Z"}
{"level":"debug","msg":"Debug information","timestamp":"2025-01-15T10:30:00Z"}
{"level":"warn","msg":"Warning message","timestamp":"2025-01-15T10:30:01Z"}
{"level":"error","msg":"Error occurred","code":"E001","timestamp":"2025-01-15T10:30:01Z"}

How Vestig Compares

See how Vestig stacks up against other popular logging libraries in terms of features and bundle size.

Feature	Vestig	Pino	Winston	Bunyan
Bundle Size (gzip)	<5KB	~25KB	~80KB	~45KB
Dependencies	0	3	8	4
TypeScript
Auto PII Sanitization
Native Tracing
Context Propagation		Plugin	Plugin
Edge Runtime		Partial
Browser Support		pino-browser	winston-browser
Structured Logging
Sampling		Plugin

Bundle sizes measured with esbuild minify + gzip. Feature comparisons as of Dec 2025.

Start Logging Smarter

Zero config. Zero dependencies. Infinite possibilities.

Read the Docs Star on GitHub

0Dependencies

<5KBGzipped

100%TypeScript