Hacker News Reader

Depends on the state, check your state's tax website.

https://www.mass.gov/how-to/explore-filing-options-for-massa...

https://www2.illinois.gov/rev/programs/mytax/Pages/il-1040.a...

https://portal.ct.gov/DRS/TSC/TSC-Online

https://www.njportal.com/Taxation/NJ1040/

https://www.ftb.ca.gov/file/ways-to-file/online/calfile/inde...

https://www.oregon.gov/dor/programs/individuals/Pages/free-f...

California has CalFile. (way better than FreeFillableForms) Not sure about other states.

Oregon is free to efile as well

Using their fillable forms or through tax-prep software?

I used the online form a couple years ago and the process was so annoying compared to freetaxusa that I will gladly pay the $12 to avoid dealing with the Oregon.gov site.