We're building the AI co-pilot for ESL teachers.
ReadyESL is an AI-powered software-as-a-service (SaaS) platform that helps English-as-a-Second-Language teachers worldwide generate complete, classroom-ready lessons in under 90 seconds — with AI-generated voice narration, CEFR-aligned content, downloadable PowerPoint exports, and a fully interactive student assignment system.
What ReadyESL does
ReadyESL is a comprehensive online platform (readyesl.com) for ESL teachers, language schools, and freelance tutors. Teachers sign up, pick from 33+ specialized AI tools, and generate lessons tailored to their student's exact CEFR level (A1–C2), age group (Kids 5–8, Kids 9–12, Teens, Adults, Business Professionals), exam target (IELTS, TOEFL, Cambridge, Trinity, OET) and topic.
Core features (all live in production)
- •Hundreds of AI mini-tools — CEFR Leveler, MCQ Quiz, Gap-Fill, Reading Comprehension, Story Generator, Vocabulary, Idiom Explainer, Tongue Twisters, Discussion Questions, Word-Definition Matching, Audio Transcribe, and more.
- •PPT Builder — enter one topic, get a complete 25-minute lesson with slides, AI voice narration, AI-generated song, comprehension questions, and editable .pptx export.
- •Library of pre-built lessons — hundreds of AI-generated, CEFR-tagged lessons searchable by exam, audience, and topic, each with a cover image.
- •Student assignments + auto-grading — turn any lesson into a shareable link, students complete it on their phone, teachers receive scores by email and push notification.
- •Virtual Classroom — live 1-on-1 video room with CoTeach AI sidebar, interactive whiteboard, slide viewer, mini-games, and LiveTranslate chat in 39 languages.
- •VoiceStudio — your own voice, cloned and delivered to parents in 39 languages with phonetic safety for non-English student names.
- •FocusLens attention tracking — per-student dashboards showing engagement, mic activity, and on-task time during live classes.
- •AI moderator + community — in-product teacher community with multilingual AI content moderation (catches harmful content across all 39 supported languages).
- •PWA + offline support — installable on any phone or laptop, push notifications, no app store needed.
Who we serve
Independent ESL teachers
Online tutors on iTalki, Cambly, Preply, Outschool, or running their own private 1-on-1 students. Generate a personalized lesson for each student in 90 seconds instead of 90 minutes.
Language schools & academies
Small-to-medium academies (5–50 teachers) that need consistent CEFR-aligned curriculum, shared lesson library, and per-teacher branding without hiring a curriculum designer.
Exam prep specialists
IELTS, TOEFL iBT, Cambridge KET/PET/FCE/CAE/CPE/YLE, Trinity GESE, and OET tutors who need exam-format-specific practice materials at scale.
Business English coaches
Corporate English trainers with our strict "Adult Business English" linguistic-lock mode — boardroom vocabulary, no kid-vibe, magazine-quality output.
How it works
Pick a tool or template
Choose from our AI tool suite or open the PPT Builder. Set CEFR level, audience, language.
AI generates instantly
Our AI engine builds the lesson, voice narration, and cover art in under 90 seconds.
Teach or assign
Use the lesson in the Virtual Classroom, export to PowerPoint, or share an interactive link with your students.
Built by an ESL teacher, not a tech bro
Oscar Ortega — Founder & CEO
10+ years teaching ESL across Latin America & Asia
Oscar is an ESL teacher who spent a decade in classrooms in Mexico, Guadalajara, and online via China-based academies before realizing that 70% of his prep time was spent building the same materials over and over. ReadyESL is the tool he wished he had on his first day teaching.
He also runs Teacher Happy Global Academy, a sister K-12 platform serving 200+ paying families. ReadyESL is the B2B teacher-tool spinoff of that operation, focused exclusively on the teacher workflow rather than the parent-and-student experience.
Architecture & resilience
ReadyESL runs on a modern fully-serverless global edge architecture purpose-built for sub-100ms latency and predictable cost — no traditional servers, no single point of failure:
- •Global Edge Worker — every request is served from the data centre nearest the user (300+ cities worldwide), with automatic failover. Dedicated Hong Kong edge worker for sub-second latency in Mainland China.
- •Brand-isolated database — multi-tenant relational store with strict per-brand query filtering, so ReadyESL and partner products never see each other's data.
- •Object storage at the edge — generated lesson covers, audio files, and PDF exports served instantly from the closest geographic region.
- •Multi-provider AI backbone — best-in-class large language model, image generation, music generation, and voice cloning, all wrapped behind a unified internal API with automatic fallback if any single provider degrades.
- •Dual-region email delivery — worldwide-optimised provider + China-region provider for guaranteed delivery to parents inside the GFW.
- •DDoS & bot protection — automatic global DDoS mitigation, geo-aware rate limiting, invisible CAPTCHA on auth endpoints, AI-gate quota system per teacher to prevent API-key abuse.
- •COPPA-safe — minors never hold credentials. Parents own the account; kids access via magic-link or class code, encrypted in transit and at rest.
Company details
- Company name
- ReadyESL
- Domain
- readyesl.com
- Founded
- 2025 (B2B spinoff of Teacher Happy, founded 2022)
- Sector
- EdTech · SaaS · ESL teaching tools
- Business model
- B2B SaaS · Trial → Basic ($6.99/mo) → Pro ($10.99/mo) → Pro Live ($14.99/mo) → Schools (custom)
- Target market
- ESL teachers + small academies worldwide (LatAm, EU, SEA, China)
- Category
- All-in-one AI teaching workspace · live virtual classroom · voice cloning
- Contact
- hello@readyesl.com
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