
OtterFill: AI Form Filler
Fill & check forms with AI
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Free
In-App Purchases
Rating summary
About
Let AI fill in your forms. Upload or photograph any form: OtterFill's AI reads it, explains every question, prefills answers from your documents and checks the form before you submit. Then download the original, filled in.
OtterFill is a form-filling tool. It isn't affiliated with any government office and doesn't give legal or immigration advice.
What the AI does
• Reads any form: PDFs (fillable or flat), scans, photos, screenshots, Word or Excel files up to 10 MB, a link to the form, or one it finds by name. Every field becomes a clear question.
• Prefills from your documents: add an old application, a resume or a passport, and the AI fills in the matching answers. Each one waits for you to confirm it.
• Explains any question in plain words. When it looks something up, it uses official sources, such as the government or the office that issued the form (for example canada.ca or uscis.gov), and says where the answer comes from.
• Checks before you submit: empty required fields, wrong formats, and answers that don't match each other or your other forms.
The filled original
Download the original form with your answers in place, plus a list of every answer. OtterFill never submits a form for you: you check it and submit it yourself.
In your language, too
Read every question in any of 24 languages, with the form's own wording underneath, and answer in yours: OtterFill writes each answer the way the form expects, in the form's language, and keeps your words beside it so you can check.
English, 简体中文, 繁體中文, Español, Français, Deutsch, Português, Italiano, Nederlands, Polski, Русский, Українська, Türkçe, العربية, فارسی, اردو, हिन्दी, বাংলা, 日本語, 한국어, Bahasa Indonesia, Tiếng Việt, ไทย, Filipino
Made for the forms that matter
Visas and residence permits, residence registration, work permits, citizenship, university and rental applications, benefits, tax forms, insurance claims, school enrollment and more.
Free to try, pay per form
Reading a form, filling it in and downloading a list of your answers are free, with a few AI questions to try. Sign in, also free, to prefill and check each form once. One credit unlocks a form for 30 days: download the filled original as often as you like, ask up to 100 questions, prefill up to 10 times and check it up to 20 times. Credits are one-time purchases in packs of 1, 3 or 10, not a subscription, and they also work on otterfill.com.
Your documents stay yours
Forms and documents are deleted after 7 days (30 for an unlocked form), or as soon as you delete them. Your answers are never written to our logs or used to train AI models.
Like any AI, OtterFill can make mistakes: read your form before you submit it.
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What's New in OtterFill
1.1.0
November 5, 2026
Improvements and bug fixes that make filling in your forms smoother. Thanks for using OtterFill!
3
Subscriptions & In-App Purchases
$7.99
1 Form
Unlocks one form: export the filled original.





