Updated 2026-09-15

Sider alternatives

A sidebar extension that routes your prompts to several different models from one panel. It is a good tool. These are the situations where people go looking for something else, and what they land on.

Why people switch

  • Subscription fatigue: another monthly fee for something that sits beside the assistant you already pay for.
  • You would rather your page content did not pass through a third-party service.
  • You only wanted one feature out of a very large feature set.

The alternatives

LocalBridge

A Chrome extension that reads the tabs you tick and sends their readable text into Claude or ChatGPT in one click.

Better than Sider at: Batch: several tabs in a single send

Worse at: Chrome only

Full entry

Monica

An all-in-one AI assistant extension offering chat, writing help and page summaries across multiple models.

Better than Sider at: Wide range of built-in shortcuts

Worse at: Free tier is capped; heavier use is paid

Full entry

Merlin

A sidebar assistant that answers on any page and supports several underlying models.

Better than Sider at: Keyboard-driven access anywhere in the browser

Worse at: Credit-based limits

Full entry

Claude for Chrome

Anthropic's own Chrome extension, which puts Claude in a side panel and lets it act on the page you are viewing.

Better than Sider at: Deepest possible Claude integration, built by Anthropic

Worse at: Availability has been limited and tied to higher-tier Claude plans

Full entry

Common questions

What is the closest alternative to Sider?
LocalBridge. A Chrome extension that reads the tabs you tick and sends their readable text into Claude or ChatGPT in one click. The right pick depends on whether you need one page handled deeply or several pages handled at once.
Is there a free alternative to Sider?
Several have capped free tiers, and manual copy-paste is always free. The trade is time: free tiers run out and pasting six pages by hand costs more minutes than most people expect.
Why do people look for Sider alternatives?
Subscription fatigue: another monthly fee for something that sits beside the assistant you already pay for. You would rather your page content did not pass through a third-party service. You only wanted one feature out of a very large feature set.

Get LocalBridge

One click sends your open tabs into Claude or ChatGPT. One-time licence, no subscription.

See how it works