Explore · The library

Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. Claude inside Excel, Word, PowerPoint and Outlook: ask about any cell, change assumptions without breaking formulas, build a... claude.com Tool · How Founders Use AI Claude for Microsoft 365 Anthropic
  2. A free Community plan and Professional at $36 an editor a month for a data workspace where analysts and agents query a... hex.tech Tool · How Founders Use AI Hex pricing Hex
  3. An AI writing and SEO assistant inside WordPress at $71.88 a year, for founders whose site runs on WordPress. rankmath.com Tool · How Founders Use AI Rank Math Content AI Rank Math
  4. Shows that Pika's free plan runs on credit packs with no commercial licence, and that Starter at $10 a month gives 600 credits... pika.art Tool · How Founders Use AI Pika pricing Pika
  5. Luma's studio for brand work starts at Plus, $30 a month for 10,000 credits with commercial use, and lists the credit cost of... lumalabs.ai Tool · How Founders Use AI Luma plans and pricing Luma AI
  6. Recraft makes vectors, icons and brand graphics; its pricing page says free-plan images are owned by Recraft, shown publicly... recraft.ai Tool · How Founders Use AI Recraft pricing Recraft
  7. An independent ranking of text-to-speech models by blind listener votes, led by Eleven v4, with each model's price per million... artificialanalysis.ai Tool · How Founders Use AI Text to Speech leaderboard Artificial Analysis
  8. Indian-language voices, Hindi, Bengali, Tamil, Hinglish and Indian English among them, with samples you can play before you build. sarvam.ai Tool · How Founders Use AI Bulbul text-to-speech API Sarvam AI
  9. Google's free editor with more than 30 pro tools, film simulations and smart masking, with no in-app purchases. apps.apple.com Tool · How Founders Use AI Snapseed: Photo Editor (App Store) Google
  10. A free AI photo and video editor, an App Store Editors' Choice, with Generative Expand and paid extras as in-app purchases. apps.apple.com Tool · How Founders Use AI Adobe Lightroom (App Store) Adobe
  11. Music for ads, branded content and video, built in partnership with artists, labels and publishers; tracks are cleared for... elevenlabs.io Tool · How Founders Use AI Eleven Music ElevenLabs
  12. Free at 50 credits a day with no song downloads and no commercial rights; Pro at $8 a month billed yearly for 2,500 credits a... suno.com Tool · How Founders Use AI Suno pricing Suno
  13. Google's music model, making tracks from a 60-second clip to a full 3-minute song, in Google Flow Music and the Gemini app. deepmind.google Tool · How Founders Use AI Lyria 3.5 Google DeepMind
  14. Basic is free with 500 credits and 10 minutes of video a month, watermarked; Starter is $19 a month for 1,250 credits and... synthesia.io Tool · How Founders Use AI Synthesia pricing Synthesia
  15. Professional 2D animation and motion graphics for Mac and Windows, completely free to download and use for individuals, with... cavalry.studio Tool · How Founders Use AI Cavalry Cavalry (Canva)
  16. Blender's Grease Pencil tools for drawing 2D in a 3D viewport, with full animation support and onion skinning, in free and... blender.org Tool · How Founders Use AI Blender: story art and 2D animation Blender Foundation
  17. A free frame-by-frame animation app for phones and tablets, the easiest place to start drawing animation by hand. flipaclip.com Tool · How Founders Use AI FlipaClip FlipaClip
  18. Animated character videos from a script or a document: Starter $58 a month billed yearly ($699 a year), Professional $100 a... vyond.com Tool · How Founders Use AI Vyond plans Vyond
  19. A free plan of 60 credits a month, where one credit is one minute of uploaded video; paid plans remove the watermark and export... vizard.ai Tool · How Founders Use AI Vizard pricing Vizard
  20. One-time packages with no subscription: Basic $29, Professional $39 for 50 headshots in 30 minutes, Executive $59, a free redo,... headshotpro.com Tool · How Founders Use AI HeadshotPro pricing HeadshotPro
  21. Basic, Standard and Executive packages for 40, 60 and 100 headshots, priced $35, $45 and $75 on the current offer, with a full... aragon.ai Tool · How Founders Use AI Aragon pricing Aragon
  22. Indian legal research that cites the judgments and statutes behind each answer, document review, translation into 23 languages... lexlegis.ai Tool · How Founders Use AI Lexlegis AI Lexlegis
  23. Legal AI agents used by more than 16,150 lawyers and 650 judges, the team behind the Karnataka High Court's move to paperless... jhana.ai Tool · How Founders Use AI jhana jhana
  24. The Indian legal research database with AI search, case management, compliance and contract tools added. manupatra.ai Tool · How Founders Use AI Manupatra legal tech suite Manupatra

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