2siq
Automatically detects errors and provides tailored suggestions to refine user-written emails for any occasion.
Automatically detects errors and provides tailored suggestions to refine user-written emails for any occasion.

Error detection
identifies grammar, spelling, and punctuation mistakes in your draft
Contextual suggestions
provides recommendations tailored to the type of email and occasion
Tone analysis
assesses whether your message strikes the right tone for your audience
Multiple email types
supports various occasions from professional to personal correspondence
Freemium access
basic checking available without payment
Professionals checking formal business emails before sending to clients or executives
Non-native English speakers looking to improve email clarity and confidence
Customer service teams ensuring consistent, professional communication
Job seekers refining cover letters and follow-up emails
Anyone wanting a quick proofread before hitting send