What Is Diffit?

Diffit solves one of teaching's most time-consuming problems: adapting reading materials to different student levels. You paste in any text, URL, or topic — and Diffit instantly produces the same content rewritten at any reading grade level, from K through 12. Each adapted text automatically includes comprehension questions, vocabulary lists, and a summary. For ESL and ELL teachers, Diffit is particularly powerful because it can reduce reading complexity while maintaining content integrity. It is also used in special education for text levelling and in differentiated classrooms where the same topic needs to be accessible to students reading at multiple levels simultaneously. The free tier allows 8 texts per week — enough for regular classroom differentiation without paying.

Pros & Cons

PROS
  • Instantly adapts any text to any reading grade level
  • Comprehension questions and vocabulary automatically included
  • Free tier (8/week) covers most classroom needs
  • ESL & ELL specific simplification options
  • Can take a URL, topic, or pasted text as input
  • FERPA compliant
CONS
  • 8 texts/week limit on free plan
  • Limited to text content — no images or multimedia
  • No lesson planning or content generation features
  • UI feels less modern than newer tools
  • No grade-level curriculum alignment
  • Paid plan ($12/mo) needed for heavy users

Pricing

Free Tier
Free (8 texts/week)
Paid Plan
$12/mo
FERPA
✓ FERPA compliant
Platforms
Web

Our Verdict

✅
RECOMMENDED

Essential for Differentiated Classrooms

Diffit is one of the most time-saving tools for any teacher with a differentiated classroom or ESL/ELL students. The ability to instantly level any reading passage eliminates hours of manual adaptation work. The free tier is genuinely sufficient for most teachers. If you have not yet tried Diffit, it should be your next tool to explore.