A person can get a friendly letter proofread by paying for an online professional editing service like Kibin or by using an online proofreading website like Grammarly. Online professional editing companies usually charge based on the type and length of the friendly letter and how fast the person needs the proofreading completed, and they can provide customized assistance with grammar, spelling and clarity. Online proofreading websites may offer basic services for free and charge a fee for more advanced editing.
Grammarly offers a free proofreading service in which an online tool analyzes the friendly letter for 250 grammar errors, looks for issues with word usage and offers advice on possible spelling mistakes. It also offers a plagiarism detection service and a premium service. An add-in for Microsoft Office is also available.
In addition to using professional editing services or online checkers, people may be able to ask a friend to proofread the friendly letter for free. Those who are students may also get help through their school's writing lab. Either source is helpful for having another set of eyes look for grammar and spelling mistakes.
People should also consider proofreading their own work, even if they do have someone else to do it. They should first edit the letter for cohesion and then focus on one specific grammar or spelling error at a time for the most thorough proofreading.