Coding AI tools
AI coding and development assistants.
21 tools reviewed
Coding assistants range from autocomplete inside your editor to agents that read the whole repository, write across several files and run the tests. The difference between them is not the quality of the code they produce — that is similar — but how much of your project's context they hold and how much repetitive work they save you: migrations, tests, refactors and understanding code someone else wrote.
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Coding AI tools with a free plan
Paid coding AI tools
How to choose a coding AI tool
Whether it plugs into the editor you already use
This is the first thing to check and what most people discover too late. An excellent tool that forces you to change editor has a real cost that does not show up in the price. Make sure there is an extension for your environment and that it is maintained, not published and abandoned a year ago.
How much of the repo it understands
Autocomplete sees the open file; an agent indexes the whole project. For writing individual functions the first is enough. For asking it to "change this everywhere" you need the second, and the price gap between them is usually only justified if you work daily in large codebases.
What happens to your code
Before connecting anything to a work repository, check whether the tool trains on your code, whether it stores it and where. Many offer an enterprise mode that excludes it, and some can run locally. If your company has a code policy, this is not optional.
How heavy use is billed
Reference prices run around $10-20 a month for autocomplete and rise sharply for agents, some with usage caps you do not see until you cross them. If you plan to hand off long tasks, check whether the plan is flat-rate or metered before you get used to it.
Before you pay, keep this in mind
Generated code compiles and looks correct far more often than it is correct, and that is the risk: reviewing someone else's code that works at first glance takes more attention than writing it. Two things always worth checking by hand are the dependencies it adds — it sometimes invents packages that do not exist, and that name is a target for anyone who wants to publish it with malware — and anything touching authentication, permissions or personal data.
Frequently asked questions
Is a paid coding assistant worth it?
If you code daily, almost always: the savings on mechanical work — tests, types, migrations, docs — beat the cost within days. If you code occasionally or are learning, free plans and general assistants cover the same ground at no cost.
Can I use them while learning to code?
Yes, and they help a lot with understanding code you do not follow. The risk is accepting solutions without knowing why they work, which is the fastest way to plateau. A useful habit while learning: ask it to explain the why before accepting the what.
Do they train on my code?
It depends on the tool and the plan. Several exclude paying customers' and enterprise code by default; others use it unless you switch it off in settings. It is the first thing to check if you work with a client's code.