Blog
How-tos for the problems our extensions solve. Each article answers one question first, then shows where the extension helps.
Pixel Ruler guides
Pixel Ruler draws a ruler over the page you are viewing, so you can drag between two points or hover an element and read its size in CSS pixels. About the extension
Python Runner guides
Python Runner keeps a CPython interpreter inside the extension, so you can paste a script, press Run and read the output without installing Python. About the extension
SQLite Explorer guides
SQLite Explorer opens a database file in a browser tab, lists its tables and lets you filter, sort and export rows without writing SQL. About the extension
- How to see a table's schema in SQLite (the DESCRIBE equivalent)
SQLite has no DESCRIBE. Use .schema for the CREATE statement or PRAGMA table_info for the columns, and see what each one leaves out.
· 7 min read - How to list all tables in a SQLite database
List the tables in a SQLite database with .tables, a sqlite_schema query, PRAGMA table_list or Python, and see why each method returns a different list.
· 7 min read - How to export a SQLite table or query to CSV and Excel
Export a SQLite table or query to CSV with one sqlite3 command, open it in Excel with .excel, and avoid the 300-character cut we saw in SQLite 3.53 and 3.54.
· 7 min read - What is a .db file, and how do you open one?
A .db file is often a SQLite database, but not always. How to check yours, open it on Windows, Mac or in Chrome, and what to do if it is encrypted.
· 7 min read
Token Counter guides
Token Counter for Claude shows how much of your session and weekly limit is used and when each one resets, from the toolbar or a bar under the chat. About the extension
- Claude Code usage limits: how the 5-hour and weekly limits work in the terminal
Claude Code shares your plan's 5-hour and weekly limits with claude.ai. What counts in the terminal, what drains them fastest and what happens at the limit.
· 7 min read - Claude usage credits (formerly extra usage): what they cost and how they work
Claude usage credits, formerly extra usage, keep you working past a 5-hour or weekly limit at API rates. What they cost and how to cap or turn them off.
· 7 min read - Claude Pro vs Max usage limits: how much more Max gives you
Pro is $20 a month; Max is $100 for 5x Pro's per-session usage or $200 for 20x. How session and weekly limits, Claude Code and Fable differ by plan.
· 7 min read - How to check how much Claude usage you have left
See your remaining Claude session and weekly usage in Settings > Usage, in Claude Code with /usage, or right under the chat box. Step-by-step guide.
· 6 min read - When does Claude's limit reset? 5-hour and weekly limits explained
Claude's session limit resets every five hours; the weekly limit resets at a fixed time set for your account. How to find your exact reset time.
· 6 min read