Aider
Bolt.new
| Feature | Aider | Bolt.new |
|---|---|---|
| Pricing | Free only | Free / from $20/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.5 / 5 | 4.3 / 5 |
| Best For | developers, open-source-contributors, terminal-users, pair-programmers | non-developers, prototypers, startups, mvp-builders |
| Founded | 2023 | 2024 |
| Multi File Editing | ✓ | ✗ |
| Git Integration | ✓ | ✗ |
| Voice Mode | ✓ | ✗ |
| Image Input | ✓ | ✗ |
| Linting | ✓ | ✗ |
| Testing Integration | ✓ | ✗ |
| Full Stack Generation | ✗ | ✓ |
| Browser Runtime | ✗ | ✓ |
| Multi Framework | ✗ | ✓ |
| Deployment | ✗ | ✓ |
| Npm Packages | ✗ | ✓ |
| File Editing | ✗ | ✓ |
| Preview | ✗ | ✓ |
✓ Aider Pros
- Works with any LLM (Claude, GPT-4, local)
- Edits code directly in your repo
- Automatic git commits
- Voice coding support
✗ Aider Cons
- Terminal-only (no GUI)
- Requires API keys (costs per token)
- Can make incorrect edits on complex tasks
✓ Bolt.new Pros
- Builds entire apps from a single prompt
- Runs code in browser (WebContainers)
- Supports multiple frameworks (React, Vue, Svelte)
- One-click deployment
✗ Bolt.new Cons
- Complex apps require heavy iteration
- Limited backend capabilities
- Can struggle with databases and auth
The Verdict
Aider is built for developers and open source contributors, with a focus on multi-file-editing and git-integration. Bolt.new targets non developers and prototypers and leads with full-stack-generation and browser-runtime.
Aider uses custom enterprise pricing, while Bolt.new starts at $20/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Bolt.new offers broader built-in capabilities (7 features vs 6), while Aider takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.