There are multiple of those. The IRS even provides such itself: https://www.irs.gov/e-file-providers/free-file-fillable-forms https://www.irs.gov/e-file-provide

There are multiple of those. The IRS even provides such itself: https://www.irs.gov/e-file-providers/free-file-fillable-forms https://www.irs.gov/e-file-providers/free-file-fillable-form... FreeFileUSA lets you e-file your federal taxes for free even. The problem is that most people don't know about such things and don't feel comfortable filling in the needed data anyway. Plus most states have the same requirements and make filing even harder.