Explain code or an error

Paste an error, get an explanation.

Paste an error, get an explanation. The tools below run on your computer. Most of them are free, and the work stays on your machine.

Works offline · Free options

Easiest way to start

Ollama + Qwen2.5-Coder 7B

The simplest app for a local chatbot. Pick a model, then talk.

Will it run on my computer?

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Most tools here are free.

Install Ollama from its official guide: Ollama's download page.
Open the Qwen2.5-Coder 7B page and check the traffic light for a few kinds of computer.
Follow that official guide. This site does not add its own install steps.

Does this upload my files?: No. The tools on this page are meant to run on your computer.
What does it cost?: Most options are free. A few apps are a one-time purchase, and a few models need a computer with more memory.
What if it will not fit?: Use Check my computer, or turn on the lighter memory filters. A red light on the model page means the file is too big.

Ordinary apps for code & tech. The links use a placeholder referral code and may pay us.