# SpendLens

> See token count and cost before you send your AI prompt.

Canonical page: [https://chrome-stats.com/d/spendlens](https://chrome-stats.com/d/spendlens)

## Overview

- **ID:** `spendlens`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** boyzliberty
- **Category:** feeds-news-blogging,web-development,search-tools
- **Version:** 1.0.0
- **Last updated:** 2026-03-18
- **First published:** 2026-03-15
- **Size:** 22 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/spendlens/)
- **Website:** [https://github.com/boyzliberty360/spendlens/issues](https://github.com/boyzliberty360/spendlens/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/spendlens/privacy/](https://addons.mozilla.org/firefox/addon/spendlens/privacy/)

## Description

SpendLens shows token count and estimated cost in real time as you type your AI prompt — before you hit send. Works on Claude, ChatGPT, Gemini, Perplexity and more. Zero data collection, runs locally.

## Rankings

- #139,022 — Overall
- #176 — spend

## Permissions and access

### Permissions

- `storage`
- `activeTab`

### Host permissions

- `https://claude.ai/*`
- `https://chat.openai.com/*`
- `https://chatgpt.com/*`
- `https://gemini.google.com/*`
- `https://aistudio.google.com/*`
- `https://poe.com/*`
- `https://perplexity.ai/*`

### Content script matches

- `claude.ai`
- `chat.openai.com`
- `chatgpt.com`
- `gemini.google.com`
- `aistudio.google.com`
- `poe.com`
- `perplexity.ai`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Request access to the following domains: claude.ai, openai.com, chatgpt.com, google.com, poe.com, perplexity.ai
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/spendlens)