Directory

Tools reviewed by people who ship.

Every entry lists what it's genuinely good at, where it falls apart, and what to use instead.

CU

Cursor

Coding

Freemium

The AI code editor built for agentic engineering workflows.

Strengths
Excellent multi-file edits · Deep repo context · Fast inline diffs
Trade-offs
Heavy on large monorepos · Pro tier needed for best models
Alternatives
Windsurf, Zed, Copilot
Editorial directory
CL

Claude

Assistant

Freemium

Long-context reasoning assistant with strong writing and code review.

Strengths
Very long context · Careful reasoning · Great at editing prose
Trade-offs
Rate limits on free tier
Alternatives
ChatGPT, Gemini
Editorial directory
LN

Linear

Productivity

Freemium

Issue tracking that engineering teams actually keep updated.

Strengths
Keyboard-first · Beautiful defaults · Fast sync
Trade-offs
Opinionated workflow
Alternatives
Height, Jira
Editorial directory
EX
Free

Hand-drawn style whiteboard for architecture sketches.

Strengths
Zero friction · Great for system design · Open source
Trade-offs
Limited advanced diagramming
Alternatives
tldraw, Figjam
Editorial directory
RC

Raycast

Productivity

Freemium

Command palette for your entire machine.

Strengths
Extensible · Extremely fast · Great extension store
Trade-offs
macOS-centric
Alternatives
Alfred, Flow Launcher
Editorial directory
PX

Perplexity

Research

Freemium

Answer engine with citations for technical research.

Strengths
Sourced answers · Good for literature scans
Trade-offs
Occasional shallow sourcing
Alternatives
Elicit, Consensus
Editorial directory
SB

Supabase

Backend

Freemium

Postgres backend with auth, storage and realtime included.

Strengths
Real Postgres · Generous free tier · Good DX
Trade-offs
RLS has a learning curve
Alternatives
Neon, PlanetScale
Editorial directory
FG

Figma

Design

Freemium

Collaborative interface design and prototyping.

Strengths
Industry standard · Strong plugin ecosystem
Trade-offs
Heavy files slow down
Alternatives
Penpot, Sketch
Editorial directory
GP

ChatGPT

Assistant

Freemium

The general-purpose assistant with the widest tool, voice and image surface.

Strengths
Widest feature surface of any assistant · Excellent data analysis over uploaded files · Voice mode is genuinely conversational · Huge amount of community prompt material
Trade-offs
Answer quality varies noticeably between models · Confidently wrong on niche facts · Usage caps shift without much notice
Alternatives
Claude, Gemini, Perplexity, DeepSeek
Editorial directory
GE

Gemini

Assistant

Freemium

Google's assistant, strongest when your work already lives in Workspace.

Strengths
Deep Google Workspace integration · Very large context window · Strong multimodal understanding of video and PDFs · Generous free access in India
Trade-offs
Quality is inconsistent across model tiers · Occasionally refuses harmless requests · Workspace features need admin approval on college accounts
Alternatives
ChatGPT, Claude, Perplexity, NotebookLM
Editorial directory
Freemium

Inline code completion wired into the editors and the pull-request flow.

Strengths
Free for verified students via the Student Pack · Works across VS Code, JetBrains, Neovim and Visual Studio · Pull-request summaries save real review time · Minimal workflow disruption
Trade-offs
Weaker at large multi-file refactors than agent-first editors · Suggestions skew toward common patterns · Enterprise policy can disable it without warning
Alternatives
Cursor, Codeium, Tabnine, Amazon Q Developer
Editorial directory
NB

NotebookLM

Research

Free

Grounded notebook that answers only from the sources you upload.

Strengths
Answers stay grounded in your own sources · Inline citations point to the exact passage · Audio overviews are excellent for revision · Free with a Google account
Trade-offs
Useless without good source material · Upload size and source count limits · Weak at synthesis across very different domains
Alternatives
Perplexity, ChatGPT Projects, Claude Projects, Elicit
Editorial directory
V0

v0

Design

Freemium

Prompt-to-UI generator that outputs real React and Tailwind components.

Strengths
Outputs clean React + Tailwind you can actually keep · Screenshot-to-UI works surprisingly well · Iterating on a generated screen is fast · Great for portfolio and hackathon speed
Trade-offs
Generated styles ignore your existing design tokens · Accessibility needs a manual pass · Credit consumption adds up quickly
Alternatives
Lovable, Bolt, Figma Make, shadcn/ui blocks
Editorial directory
MJ
Paid

The highest-ceiling image model for stylised, art-directed visuals.

Strengths
Best aesthetic quality out of the box · Style and character references keep a series consistent · Deep parameter control for art direction · Strong community prompt culture
Trade-offs
No free tier at all · Text inside images is unreliable · Learning curve on parameters and references
Alternatives
Flux, Ideogram, Google Imagen, Leonardo
Editorial directory
ID
Freemium

Image model that actually renders legible text inside the picture.

Strengths
Reliable, legible text rendering · Magic Prompt expands terse ideas well · Usable free tier · Good at poster and packaging layouts
Trade-offs
Photorealism lags the best models · Free generations are slow at peak times · Fine typographic control is still limited
Alternatives
Midjourney, Flux, Canva Magic Studio, Adobe Firefly
Editorial directory
RW

Runway

Video

Freemium

Generative video suite with editing tools rather than just a prompt box.

Strengths
Generation plus real editing tools in one place · Motion brush gives directable camera and subject movement · Strong image-to-video consistency · Fast iteration on short clips
Trade-offs
Credits burn quickly at high resolution · Clip length is short · Complex physics and hands still break
Alternatives
Luma Dream Machine, Pika, Kling, Google Veo
Editorial directory
EL
Freemium

Text-to-speech and voice cloning that clears the uncanny-valley bar.

Strengths
Most natural TTS available · Strong multilingual and Indian-language support · Clean, well-documented API · Dubbing keeps the original voice character
Trade-offs
Voice cloning raises obvious consent issues · Character quotas run out fast on the free tier · Long-form output needs chunking
Alternatives
OpenAI TTS, PlayHT, Murf, Google Cloud TTS
Editorial directory
VC

Vercel

DevOps

Freemium

Deployment platform where a git push becomes a preview URL.

Strengths
Zero-config deploys for most frameworks · Per-branch preview URLs · Fast global edge network · Excellent developer experience
Trade-offs
Costs escalate sharply beyond the free tier · Serverless function limits constrain long tasks · Some features assume Next.js
Alternatives
Netlify, Cloudflare Pages, Railway, Render
Editorial directory
PM

Postman

DevOps

Freemium

API client for building, testing and documenting requests.

Strengths
Collections and environments keep API work organised · Scripted tests turn requests into a regression suite · Auto-generated docs from collections · Universally understood by backend teams
Trade-offs
Desktop app is resource-hungry · Cloud sync is pushed hard over local-only work · Free team limits are tight
Alternatives
Insomnia, Bruno, Hoppscotch, HTTPie
Editorial directory
LC

LeetCode

Interview

Freemium

The problem bank Indian tech interviews are still built on.

Strengths
Largest problem bank with quality editorials · Company-wise tags mirror real interview loops · Weekly contests build time pressure tolerance · Active discussion threads per problem
Trade-offs
Premium paywalls the most useful company filters · Rewards memorisation if used carelessly · Says little about real engineering ability
Alternatives
NeetCode, Codeforces, InterviewBit, HackerRank
Editorial directory
OB

Obsidian

Productivity

Freemium

Local-first markdown notes with backlinks and a large plugin ecosystem.

Strengths
Plain markdown files you fully own · Backlinks build a genuine knowledge graph · Works entirely offline · Deep plugin ecosystem
Trade-offs
Setup is a rabbit hole; plugin sprawl is real · Sync across devices costs extra unless you self-host · Mobile editing is fine but not delightful
Alternatives
Notion, Logseq, Apple Notes, Anytype
Editorial directory
N8

n8n

Automation

Freemium

Source-available workflow automation you can self-host, with AI nodes.

Strengths
Self-hostable at effectively zero marginal cost · Code nodes let you drop into JavaScript when the UI runs out · Strong AI and vector-store nodes · Hundreds of prebuilt integrations
Trade-offs
Self-hosting means you own the uptime · Debugging long workflows is tedious · Cloud pricing by execution surprises people
Alternatives
Zapier, Make, Activepieces, Windmill
Editorial directory
Freemium

The model, dataset and demo hub the open ML ecosystem runs on.

Strengths
Vast catalogue of open models and datasets · Free Spaces for hosting demos · Standard libraries used across the industry · Strong community documentation
Trade-offs
Model quality varies wildly and licences differ · Free Space hardware is slow for big models · Discovery is overwhelming for beginners
Alternatives
Kaggle, Replicate, Modal, Together AI
Editorial directory
CV

Canva

Design

Freemium

Template-first design tool for people who are not designers.

Strengths
Enormous template library · Genuinely easy for non-designers · Brand kits keep teams consistent · Solid free tier
Trade-offs
Template-default work looks generic · Limited precision compared with Figma · Best assets and AI credits are Pro-only
Alternatives
Figma, Adobe Express, VistaCreate, Pitch
Editorial directory
DK

Docker

DevOps

Freemium

Containers, the baseline skill for shipping anything to a server.

Strengths
Eliminates "works on my machine" entirely · Compose makes local multi-service setups trivial · Expected in most backend job descriptions · Huge registry of official images
Trade-offs
Desktop is heavy on low-RAM laptops · Image size discipline takes practice · Licence terms restrict Desktop in large companies
Alternatives
Podman, OrbStack, Colima, nerdctl
Editorial directory
RS

Resend

Backend

Freemium

Transactional email API built for developers, with React email templates.

Strengths
Clean API with excellent docs · React Email templates version-control nicely · Free tier covers side projects · Clear deliverability and bounce insights
Trade-offs
Marketing-campaign features are thin · Free tier daily caps are low · You still must configure DNS correctly
Alternatives
SendGrid, Postmark, Amazon SES, Brevo
Editorial directory
PG
Freemium

AI interview prep, mock rounds, DSA drills and résumé feedback in one loop.

Strengths
Realistic mock interviews with follow-up questions · Adaptive DSA sets built from your mistakes · JD-aware résumé and cover-letter feedback · Company-wise question banks for Indian hiring
Trade-offs
AI scoring is directional, not a real hiring signal · Best features sit behind the paid tier · No substitute for mocks with a human engineer
Alternatives
Pramp, Interviewing.io, Final Round AI, LeetCode Premium
Editorial directory