📖 The AI Tool Bible

Coding

Pair programmers, autocompletes, and agentic code editors.

66 tools

Why it matters

Every developer is now an AI-assisted developer. The split is between in-line autocompletes, AI-first IDEs, and full agents that write commits and open PRs.

What's in here

Includes IDE-integrated pair programmers (Cursor, Copilot, Codeium), CLI/terminal agents (Aider), and full autonomous coding agents (Devin, Replit Agent).

How to pick

Pick an AI-first IDE (Cursor) for daily coding. Pick Copilot if you're standardised on JetBrains/VS Code already. Pick a coding agent (Devin, Replit Agent) for greenfield prototyping or ticket-grade work.

Cursor

Coding · Claude / GPT (configurable)

AI-first VS Code fork — chat, edit, and agentic coding in one IDE.

Freemium· Free hobby; Pro $20/mo; Business $40/mocodingrefactors

GitHub Copilot

Coding · GPT / Claude / OpenAI o-series (configurable)

The original AI pair programmer, now with chat and agents.

Paid· Free for individuals; $10/mo Pro; $19/mo Businessautocompletechat

Replit Agent

Coding · Multi-model (Claude / GPT configurable)

Build & deploy a full app from a single prompt.

Freemium· Free credits; Core $20/mo; Teams $35/moprototypesinternal tools

Aider

Coding · BYO (Claude / GPT-4 / Gemini / DeepSeek)

Terminal-based AI pair programmer that writes commits.

Free· Free / open-source; you pay the underlying LLM API costsCLIgit workflow

Codeium

Coding · Proprietary + frontier models in Windsurf

Free, fast AI autocomplete + chat across 70+ editors.

Freemium· Free; Pro $15/mo; Teams $35/moautocompletechat

Cody

Coding · Claude / GPT / Mixtral (configurable)

Sourcegraph's AI coding assistant — codebase-aware via their search index.

Freemium· Free; Pro $9/mo; Enterprise customenterprisemonorepos

Continue

Coding · BYO (any OpenAI-compatible API + Ollama for local)

Open-source, self-hostable VS Code/JetBrains AI assistant.

Free· Free / open-source; you pay model costsself-hostedopen source

Tabnine

Coding · Proprietary (Tabnine-trained, on-prem capable)

Privacy-focused AI autocomplete with on-prem options.

Paid· $12+/mo per seat; Enterprise customenterpriseprivacy

16x Prompt

Coding · Multi-model (BYO key)

Desktop prompt-composer for AI coding that bundles repo context, diffs, and multi-model comparison.

Freemium· Free: 10 prompts/day; paid individual and team licensesprompt-engineeringai-pair-programming

AI SDK

Coding · Multi-model

Vercel's open-source TypeScript framework for building AI apps across 16+ providers with unified streaming, tools, and UI hooks.

Free· Open source (Apache 2.0); pay only for the underlying model APIschat-uiagent-building

AI/ML API

Coding · Multi-model (GPT, Claude, Gemini, Grok, Nemotron, Qwen, etc.)

Unified API gateway exposing 500+ AI models behind one OpenAI-compatible endpoint.

Freemium· Pay-as-you-go from $20 prepaid credit; enterprise custommulti-model-routingprototyping

AI2sql

Natural-language-to-SQL generator with desktop app, MCP server, and governed read-only access.

Freemium· Free tier (100 queries); Start $5/mo, Pro $11/mo, Team $23/mo; 7-day trialtext-to-sqlquery-optimization

Amazon Q

Coding · Multi-model (Amazon Bedrock)

AWS's enterprise AI assistant for developers, analysts, and knowledge workers, wired into your company data.

Freemium· Free tier; Q Developer Pro $19/user/mo; Q Business Lite $3, Pro $20/user/mocode-generationenterprise-search

Amazon Q Developer

Coding · Multi-model (Amazon proprietary + partners)

AWS's in-IDE coding assistant and agent, formerly CodeWhisperer, tuned for cloud-heavy workflows.

Freemium· Free tier; Pro $19/user/monthcode-completionagentic-coding

Apache Mahout

Open-source ML framework pivoting toward scalable quantum computing primitives.

Free· Free, Apache-2.0 licensedquantum-circuitshybrid-ml

Beam

Serverless GPU infrastructure for AI workloads with sub-second cold starts and bring-your-own-cloud support.

Freemium· $30 free credit refreshed monthly; usage-based beyond thatgpu-inferenceagent-sandboxes

Better Sheets Formula Generator

Plain-English to Google Sheets formula converter with specialized generators for QUERY, SPARKLINE, and regex.

Freemium· Free: 2 generations; Membership $90/yr; Lifetime $275 (AppSumo)formula-generationgoogle-sheets

Callstack.ai PR Reviewer

AI pull request reviewer that flags bugs, security issues, and style drift against your team's own guidelines.

Freemium· Beta; pricing not publicly listedpr-reviewbug-detection

Capacity

Coding · Multi-model

AI app builder that generates full-stack React + Express + SQLite apps from natural language specs.

Freemium· Free tier; usage-based credits that never expireapp-prototypingmvp-builder

ChatWithCloud

Coding · OpenAI (BYO key)

Natural-language CLI for managing, troubleshooting, and fixing AWS infrastructure.

Freemium· Free trial; $39 lifetime (BYO OpenAI key) or $19/mo managedaws-clicost-analysis

Claude Code

Coding · Claude (Opus / Sonnet / Haiku)

Anthropic's agentic coding tool that reads, edits, and ships code from the terminal, IDE, or web.

Freemium· Pro $17-20/mo; Max 5x $100/mo; Max 20x $200/mo; API meteredagentic-codingcodebase-refactor

Code to Flow

AI-powered converter that turns code snippets into flowcharts, sequence diagrams, and class diagrams.

Freemium· Free 3/day; $9.99/mo; $66.99 lifetimecode-visualizationflowchart-generation

CodeRabbit

Coding · Multi-model

AI pull-request reviewer that lives inside GitHub, GitLab, and your IDE.

Freemium· Free tier; Pro $24/user/mo, Pro Plus $48/user/mo (annual); Enterprise customcode-reviewpr-automation

Codeflash

Coding · Multi-model

Autonomous AI performance engineer that finds and PRs code optimizations with benchmarks attached.

Freemium· Free tier; engagement-based paid with ROI guarantee; enterprise SaaS/cloud/on-premcode-optimizationgpu-cuda-kernels