Diffit is the one tool that actually solves the hardest part of teaching: reaching every student in the room at once.
Quick Answer: Diffit is a free AI tool that generates differentiated reading materials, questions, and vocabulary at multiple reading levels from any topic. Best for teachers with mixed-ability classrooms (ESL, IEP, gifted learners in one room) who need level-appropriate content fast. The free plan covers the basics. School plans add Google Classroom integration and standards alignment.
[Faz] If you’ve ever spent your Sunday night rewriting the same reading passage at three different levels for Monday’s class, you already know the problem Diffit solves. Differentiation isn’t optional anymore. Every classroom has students reading at wildly different levels, and most teachers don’t have the time to create custom materials for each group. Diffit takes a topic, a grade level, and spits out readings, comprehension questions, and vocabulary lists adjusted to whatever level your students need. We looked at it alongside every other tool in our best AI tools for teachers roundup to see if the hype is real.
What Diffit Does
Diffit is a differentiation tool. You type in a topic (or paste a URL, upload a PDF, or select from their library), choose a grade level, and the AI generates a complete reading passage with comprehension questions and vocabulary. The key part: you can instantly adjust the reading level up or down without starting over.
That’s the core loop. Topic in, leveled content out. It’s not trying to be a full teaching platform like MagicSchool or a workflow extension like Brisk. It does one thing, and it does it well.
Key Features
Multi-Level Reading Generation
This is what Diffit is built for. Enter any topic and the AI produces reading passages calibrated to specific grade levels. You can generate the same topic at a 3rd-grade reading level and an 8th-grade reading level simultaneously. Each version maintains the same core concepts but adjusts vocabulary, sentence complexity, and passage length.
This saves the 30-60 minutes teachers typically spend manually rewriting content for different student groups.
Automatic Questions and Vocabulary
Every generated reading comes with comprehension questions and a vocabulary list. The questions align to the reading level, so a 3rd-grade version gets simpler recall questions while an 8th-grade version gets inference and analysis prompts. Vocabulary terms are pulled from the passage with student-friendly definitions.
Multiple Input Sources
You’re not limited to typing topics. Diffit accepts:
- Text topics (“photosynthesis for 6th graders”)
- URLs (paste an article and Diffit adapts it)
- PDFs and documents
- YouTube videos (generates readings from video content)
- Their built-in content library
The YouTube-to-reading feature is particularly useful for teachers who want to pair video content with written assignments.
Standards and DOK Alignment (School Plans)
On school plans, Diffit maps generated content to state standards, specific skills, and Depth of Knowledge levels. This means your differentiated materials aren’t just level-appropriate. They’re also aligned to what your district expects students to know.
Language Support
Diffit can generate content in multiple languages and translate existing content. For ESL teachers or bilingual classrooms, this turns one lesson plan into materials for every language group in the room.
Export Options
- Free: PDF download, print, share via link
- School plans: Export directly to Google Docs, Slides, Forms, Google Classroom, and Microsoft tools
Pricing Breakdown
| Plan | Price | What You Get |
|---|---|---|
| Free | $0 | Readings, questions, vocabulary at any level. PDF download, print, share. Reading level and language adjustment |
| Diffit for Schools | Annual subscription (contact for pricing) | Everything in Free + Google/Microsoft export, standards/DOK alignment, graphic organizers, Diffit Chat, novel/chapter book support, admin dashboard |
| Individual Teacher License | Contact for pricing | Premium features for individual teachers outside a school plan |
What you need to know:
- The free plan is genuinely useful. You can generate unlimited differentiated readings, download as PDF, and share with students. No credit card required. No trial expiration.
- School pricing is a flat annual rate tiered by student enrollment. It’s not publicly listed, so you’ll need to request a quote through the app.
- The biggest upgrade from free to paid is the Google Classroom integration. If your school runs on Google Workspace, the free plan’s PDF-only export gets tedious fast.
Free Plan: What You Actually Get
Teachers pay out of pocket more than anyone admits. So here’s exactly what the free tier includes:
- Unlimited topic-based reading generation at any grade level
- Comprehension questions and vocabulary with every reading
- Reading level adjustment (change levels without regenerating)
- Language adjustment and translation
- PDF download, print, and share via link
- Access to the content library
What you don’t get for free: Google Classroom/Docs/Slides/Forms export, standards alignment, DOK levels, graphic organizers, Diffit Chat, and novel-length content support.
Verdict on the free plan: It covers the core use case (generate differentiated readings) without paying anything. The export limitation is the main friction. If you’re fine with downloading PDFs and uploading them to your LMS manually, free works.
Privacy and Compliance
Diffit states FERPA compliance in its privacy policy. For COPPA and SOC 2 status, check with Diffit directly before entering student information.
School plans include admin dashboards with usage reporting, which suggests institutional data governance. But if your district requires specific compliance documentation, request it from Diffit before signing.
Integrations
| Platform | Free | School Plan |
|---|---|---|
| PDF download | Yes | Yes |
| Google Docs | No | Yes |
| Google Slides | No | Yes |
| Google Forms | No | Yes |
| Google Classroom | No | Yes |
| Microsoft tools | No | Yes |
Who This Is For
Use Diffit if you:
- Teach mixed-ability classrooms (ESL, IEP, gifted, and grade-level students together)
- Spend significant time rewriting content at different reading levels
- Need quick, level-appropriate readings on any topic
- Want a free tool that works without a school subscription
- Teach ELA, science, or social studies where reading comprehension is central
Skip Diffit if you:
- Need a full teaching platform with lesson planning, grading, and quizzes (look at MagicSchool AI)
- Want AI tools that live inside your Google Docs workflow (look at Brisk AI)
- Primarily need grading or feedback tools
- Teach subjects where differentiated reading isn’t the main challenge (math, PE, art)
Pros
- Free plan covers the core use case with no expiration
- Generates multi-level readings in seconds, saving 30-60 minutes per lesson
- Multiple input sources (topics, URLs, PDFs, YouTube videos)
- Language support makes it ideal for bilingual and ESL classrooms
- Simple interface with almost no learning curve
Cons
- Narrow focus: differentiation only, not a full teaching platform
- Google Classroom export locked behind school plan
- School pricing not publicly listed (have to request a quote)
- COPPA/SOC 2 compliance not explicitly confirmed
- Less useful for math, PE, and other non-reading-heavy subjects
[Faz’s Take] Diffit does one thing and does it better than any other tool I’ve seen. If differentiation is your biggest time sink, this is the tool that gives you hours back every week. It’s not trying to be everything for everyone. It’s the specialist you call when you have 5th graders reading at 2nd-grade level sitting next to 5th graders reading at 8th-grade level, and you need materials for both groups by tomorrow morning. The free plan alone makes it worth trying today.
[Saru’s Verdict] 4.5/5. Diffit targets the single biggest pain point in K-12 education: differentiated instruction. The free tier is one of the most generous among teacher AI tools. The target keyword “diffit ai tool” has a KD of 0 and traffic potential of 20,000 monthly searches, indicating strong growing interest with minimal competition. Primary limitation is the narrow scope; teachers needing a broader toolkit should pair Diffit with a platform like MagicSchool or Brisk.
FAQ
Is Diffit free for teachers?
Yes. Diffit has a permanent free plan that lets you generate differentiated readings, questions, and vocabulary at any grade level. You can download as PDF, print, and share via link. No credit card, no trial period. The free plan doesn’t expire. The main thing you miss without paying is direct Google Classroom and Google Docs export, plus standards alignment features.
What does Diffit actually do?
Diffit takes any topic, URL, PDF, or YouTube video and generates reading passages at the grade level you choose. Each reading comes with comprehension questions and vocabulary. The key feature is instant level adjustment. You can take the same content and generate versions at 3rd-grade, 5th-grade, and 8th-grade reading levels without starting from scratch. This is what makes it a differentiation tool specifically.
Is Diffit FERPA compliant?
Diffit states FERPA compliance in its privacy policy. For additional compliance documentation (COPPA, SOC 2), contact Diffit directly. If your school or district requires specific data privacy agreements, request them before entering any student information into the platform.
How does Diffit compare to MagicSchool AI?
Diffit is a specialist. MagicSchool is a generalist. Diffit does one thing (differentiated readings) better than MagicSchool does it. MagicSchool does 80+ things that Diffit can’t do at all (lesson plans, rubrics, IEP writing, quizzes, report cards). If differentiation is your main need, Diffit wins. If you want one platform for everything, MagicSchool wins. Many teachers use both. We compare them in detail in our Diffit vs MagicSchool comparison.
Can Diffit generate content in other languages?
Yes. Diffit supports multiple languages for both content generation and translation. You can generate a reading in Spanish, French, or other languages, or translate an English reading into a student’s home language. This makes it particularly useful for bilingual classrooms and ESL programs where students need content in their first language alongside English materials.
Does Diffit work with Google Classroom?
Only on school plans. The free plan lets you download PDFs and share via link, but direct Google Classroom integration (pushing assignments, syncing with class rosters) requires a Diffit for Schools subscription. If Google Classroom is central to your workflow, the free plan’s PDF export adds extra steps.
How much time does Diffit actually save?
Based on the typical differentiation workflow, teachers report saving 30-60 minutes per lesson when using Diffit versus manually rewriting content at different levels. For a teacher who differentiates 3-5 lessons per week, that’s 2-5 hours saved weekly. The time savings come from eliminating the rewrite cycle: instead of writing three versions of the same reading, you generate them in under a minute.
Is Diffit good for ESL students?
Yes. ESL/ELL students are one of Diffit’s strongest use cases. The ability to generate the same content at lower reading levels means ESL students can engage with grade-level topics using vocabulary and sentence structures they can access. The language translation feature adds another layer: students can read the passage in their home language alongside the English version to build comprehension.
Final Verdict
Diffit earns a spot in every teacher’s toolkit, especially if you have a classroom where students read at different levels. The free plan is legitimately useful, the interface takes minutes to learn, and the output quality is strong enough to use without heavy editing. It won’t replace your lesson planning platform or your grading tool, but for the specific problem of differentiation, nothing else on the market matches it. Start with the free plan today. You’ll know within one lesson whether it’s worth requesting school pricing.
Rating: 4.5/5
Written by
FazFaz is the founder of AIToolsBakery. Every tool on this site is personally tested with real-world writing tasks before a single word gets published. No sponsored rankings, no recycled press releases.
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