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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
---
title: Workers increases maximum log events per invocation to 256 KB
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Frame in terms of what you can do as developer not what we did

description: Workers increases maximum log events per invocation to 256 KB
products:
- workers
date: 2025-04-07T00:00:00Z
---

You can now capture a maximum of 256 KB of log events per Workers invocation, helping you gain better visiblity into application behavior.

256 KB encompasses console.log() statements, exceptions, request metadata, and headers to the console per invocation. This is a 2x increase
from the previous 128 KB limit. After you exceed this limit, further context associated with the request will not be recorded in your logs.

This limit is automatically applied to all Workers.
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Expand Up @@ -191,11 +191,11 @@ head_sampling_rate = 0.01 # 1% sampling rate
| ------------------------------------------------------------------ | ---------- |
| Maximum log retention period | 7 Days |
| Maximum logs per account per day<sup>1</sup> | 5 Billion |
| Maximum log size<sup>2</sup> | 128 KB |
| Maximum log size<sup>2</sup> | 256 KB |

<sup>1</sup> While Workers Logs is in open beta, there is a daily limit of 5 billion logs per account per day. After the limit is exceed, a 1% head-based sample will be applied for the remainder of the day.

<sup>2</sup> A single log has a maximum size limit of [128 KB](/workers/platform/limits/#log-size). Logs exceeding that size will be truncated and the log's `$cloudflare.truncated` field will be set to true.
<sup>2</sup> A single log has a maximum size limit of [256 KB](/workers/platform/limits/#log-size). Logs exceeding that size will be truncated and the log's `$cloudflare.truncated` field will be set to true.

## Pricing

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2 changes: 1 addition & 1 deletion src/content/docs/workers/platform/limits.mdx
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Expand Up @@ -312,7 +312,7 @@ When using Image Resizing with Workers, refer to [Image Resizing documentation](

## Log size

You can emit a maximum of 128 KB of data (across `console.log()` statements, exceptions, request metadata and headers) to the console for a single request. After you exceed this limit, further context associated with the request will not be recorded in logs, appear when tailing logs of your Worker, or within a [Tail Worker](/workers/observability/logs/tail-workers/).
You can emit a maximum of 256 KB of data (across `console.log()` statements, exceptions, request metadata and headers) to the console for a single request. After you exceed this limit, further context associated with the request will not be recorded in logs, appear when tailing logs of your Worker, or within a [Tail Worker](/workers/observability/logs/tail-workers/).

Refer to the [Workers Trace Event Logpush documentation](/workers/observability/logs/logpush/#limits) for information on the maximum size of fields sent to logpush destinations.

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