Can anyone help with filter calculator/simulator sites?

[dirtyqwerty30]

I have several active filters to build for a project and as I am at home, I do not have access to my power supplies and o'scopes, does anyone know of a site that I can type in circuit values and get real readings from?

 

[alfa88]

Here's one for L-C filters: http://www.deephaven.co.uk/lc.html

 

[barathbushan]

I have several active filters to build for a project and as I am at home, I do not have access to my power supplies and o'scopes, does anyone know of a site that I can type in circuit values and get real readings from?

I don't know of any site which simulates circuits like filters , however try one of these
softwares

1) Multisim (The best)
2) Pspice
3) circuit wizard

Student versions of these software's are limited in functionality
but is free