| Year | Title | Role | Notes |
| 1982–1984 | St. Elsewhere | Megan White | Recurring role |
| 1983 | Alice | Child waiting in line for Santa | Episode: "Tis the Season to Be Jealous" |
| 1984 | T. J. Hooker | Tina | Episode: "The Confession" |
| 1985 | Punky Brewster | Julie Whitney / Jennifer Bates | Episode: "Milk Does a Body Good" |
| 1986 & 1987 | The Disney Sunday Movie | Julie / Samantha | Episodes: "Little Spies", "Bigfoot" |
| 1987 | Who's the Boss? | Young Mona | Episode: "Mona" |
| Growing Pains | Jennifer "Jenny" Foster | Episode: "The Long Goodbye" |
| 1987–1995 | Full House | D . Tanner | Main role |
| 1988 | I Saw What You Did | Julia Fielding | Television film |
| Growing Pains | Jenny Foster | Episode: "Fool for Love" |
| 1990 | The All New Mickey Mouse Club | D . Tanner | Episode: "Guest Day" |
| Camp Cucamonga | Amber Lewis | Television film |
| 1991 | Nickelodeon Gets Real Mature | Herself | Television pilot |
| 1994 | Bill Nye The Science Guy | Episode: "Chemical Reactions" |
| 1995 | Sharon's Secret | Sharon Hartley | Television film |
| Visitors of the Night | Katie English |
| 1996 | Cybill | Hannah | Episode: "When You're Hot, You're Hot" |
| No One Would Tell | Stacy Collins | Television film |
| Kidz in the Wood | Donna |
| She Cried No | Melissa Connell |
| 1997 | NightScream | Drew Summers / Laura Fairgate |
| Boy Meets World | Millie | Episode: "The Witches of Pennbrook" |
| 2001 | Twice in a Lifetime | Rose Hathaway | Episode: "Moonshine Over Harlem" |
| 2007 | That's So Raven | Courtney Dearborn | Episode: "Teacher's Pet" |
| 2008 | Moonlight and Mistletoe | Holly | Television film |
| 2009–2012 | Make It or Break It | Summer Van Horne | Main role |
| 2011 | Can't Get Arrested | Candace | Episode: "House of Pain" |
| Truth Be Told | Annie Morgan | Television film |
| The Heart of Christmas | Megan Walsh |
| 2012 | Puppy Love | Megan |
| 2013 | Finding Normal | Dr. Elizabeth "Lisa" Leland |
| Let It Snow | Stephanie Beck |
| 2014 | Christmas Under Wraps | Dr. Lauren Brunell |
| The Neighbors | Bella Bure | Episode: "There Goes the Neighbors' Hood" |
| Dancing with the Stars | Herself | Contestant; finalist in season 18 |
| 2015–2022 | Aurora Teagarden Mysteries | Aurora Teagarden | Main role; 18 films |
| 2015 | Just the Way You Are | Jennie Wreitz | Television film |
| A Christmas Detour | Paige Summerlind |
| 2015–2016 | The View | Herself | Co-host |
| 2016 | Journey Back to Christmas | Hanna Norris | Television film |
| 2016–2020 | Fuller House | D . Tanner-Fuller | Main role; also director (3 episodes) |
| 2017 | Switched for Christmas | Kate/Chris | Television film |
| 2018 | A Shoe Addict's Christmas | Noelle Carpenter |
| 2019 | Christmas Town | Lauren Gabriel |
| 2020 | Nickelodeon's Unfiltered | Herself | Episode: "Zombies Eat Unicorns!" |
| If I Only Had Christmas | Darcy | Television film |
| 2021 | The Christmas Contest | Lara |
| 2022 | A Christmas... Present | Maggie Larson |
| Christmas on Candy Cane Lane | —N/a | Producer; Television film |
