Free Crochet Smartphone Case Pattern: Crochet Bits

If you’ve been crocheting for a while, you’ve probably accumulated a collection of yarn scraps sitting in a basket somewhere, waiting for the right project. This free crochet smartphone case pattern is exactly the kind of project those bits and pieces have been waiting for. It’s small, satisfying to finish in a single sitting, and genuinely useful. Whether you’re brand new to crochet or you’ve been hooking for years, this pattern is approachable, customizable, and the perfect excuse to finally dig into those leftover yarn odds and ends.

Welcome to Crochet Bits — a place where small projects and scrappy creativity come together. Today we’re sharing a free pattern for a crochet smartphone case that fits most standard phone sizes, works up quickly, and looks adorable on your nightstand, in your bag, or tucked into a jacket pocket. Let’s get into everything you need to know.

Why Crochet a Smartphone Case?

Before we dive into the pattern, let’s talk about why a crochet phone case is worth your time. There are plenty of silicone and plastic cases on the market, but none of them have the warmth, texture, or personality of something handmade. A crocheted case won’t protect your phone from a concrete sidewalk, but it will cushion it from minor bumps, keep it scratch-free at the bottom of your bag, and serve as a cozy little home for your device when it’s charging on your nightstand.

Beyond practicality, this is just a fun, fast make. Most people can finish this project in two to three hours, which means it’s ideal for a lazy Sunday afternoon, a long car ride (if you’re a passenger, of course), or a crafting session in front of your favorite show. It also makes a wonderful handmade gift. Personalizing the colors to match a friend’s style makes it feel thoughtful without requiring weeks of work.

Another reason to love this project: it’s a fantastic stash buster. Because the case is small, you only need a small amount of yarn — often less than 50 grams, sometimes much less. That makes it perfect for using up leftover yarn from bigger projects, which is exactly the spirit behind Crochet Bits.

Materials You’ll Need

Here’s what you’ll want to gather before you start:

Yarn: Worsted weight yarn (Category 4) works best for most standard smartphone sizes because it creates a fabric thick enough to cushion your phone without making the case too bulky. You can also use DK weight (Category 3) if you go down a hook size — the fabric will be lighter and a bit more fitted. Cotton yarn is a great choice because it’s sturdy, washable, and holds its shape well. Acrylic works perfectly fine too, especially if you want a wide range of color options. You’ll need approximately 40–60 grams depending on your phone size.

Hook: A 4.0 mm (US size G/6) hook pairs nicely with worsted weight yarn for this project. If you’re working with DK weight, try a 3.5 mm hook. As always, your gauge matters more than the specific hook, so don’t be afraid to adjust.

Tapestry needle: For weaving in your ends when you’re done.

Scissors.

Stitch markers: Optional, but helpful for keeping track of your rounds if you’re working in the round.

A button or snap closure: If you want to add a flap closure to the top of your case, you’ll need one button and a small length of yarn or thread to attach it, or a sew-on snap.

That’s really it. No specialty materials, no expensive notions — just the basics that most crocheters already have at hand.

Gauge and Sizing

Gauge: 16 stitches x 18 rows = 4 inches (10 cm) in single crochet with worsted weight yarn and a 4.0 mm hook.

This pattern is written to fit a phone with dimensions of approximately 3 inches wide by 6 inches tall, which covers many popular standard-sized smartphones. If your phone is larger or smaller, the sizing section below will walk you through how to adjust. Always measure your phone before you begin and swatch if you want the most precise fit.

For a larger phone (wide format or max/plus size): Add 4–6 additional foundation chains and work 4–6 more rows in height.

For a smaller phone: Reduce your foundation chain by 4 stitches and subtract 3–4 rows from the height.

The beauty of this simple construction is that it’s very easy to size up or down by changing just a few numbers.

Abbreviations

This pattern uses US crochet terminology.

ch — chain
sc — single crochet
sl st — slip stitch
st — stitch
sp — space
RS — right side
WS — wrong side
rep — repeat

The Free Pattern: Crochet Smartphone Case

This case is worked flat in two panels that are then joined together, or you can work it in the round from the bottom up — both methods are described below. Choose whichever construction feels more comfortable to you.

Method One: Flat Panels (Beginner Friendly)

Foundation: Ch 16.

Row 1 (RS): Sc in the second chain from the hook and in each chain across. (15 sc) Ch 1, turn.

Rows 2–30: Sc in each st across. (15 sc) Ch 1, turn.

After Row 30, fasten off and weave in your ends. This is your first panel.

Make a second panel exactly the same way.

Joining the panels: Hold your two panels with wrong sides together. Using your hook and a length of yarn, join with a sl st in one corner and sc evenly around three sides of the case (the bottom and both long sides), leaving the top open. When you reach corners, work 3 sc in the corner stitch to keep the edges from pulling. At the end of the third side, sl st to join and fasten off. Weave in ends.

You now have a completed smartphone pouch. If you’d like to add a flap or closure, continue to the optional additions section below.

Method Two: Worked in the Round (Seamless Construction)

If you prefer a seamless look with no visible join on the sides, this method works up beautifully.

Foundation: Ch 16.

Round 1: Sc in the second chain from the hook and in each chain across to the last chain. Work 3 sc in the last chain to turn the corner, then continue working along the opposite side of the foundation chain, sc in each chain across. Work 3 sc in the final stitch to complete the oval base. Do not join; place a stitch marker to note the beginning of the round. (32 sc + 4 corner sts = 36 sc)

Rounds 2–28: Sc in each st around. (36 sc)

After Round 28, sl st to the next stitch and fasten off. Weave in your ends.

The top of the case is left open. This seamless tube is your finished phone pouch. You can leave the top edge as is, or work a simple border round for a polished finish.

Optional border: Join yarn at any stitch along the top opening. Ch 1, sc evenly around the opening, sl st to join. Fasten off and weave in ends.

Optional Additions

Flap Closure

A simple folded flap adds a nice design detail and keeps your phone from sliding out. After completing your case using either method, count the stitches along the back panel (or the back half of your tube) at the top opening.

Row 1 of flap: Join yarn at the right back corner of the top opening. Ch 1, sc across the back panel only. (15 sc or however many stitches span the back of your case) Ch 1, turn.

Rows 2–6: Sc in each st across. Ch 1, turn.

Row 7 (buttonhole row): Sc 6, ch 2, skip 2 sts, sc to end. Ch 1, turn.

Row 8: Sc across, working 2 sc into the ch-2 space from the previous row. Ch 1, turn.

Row 9: Sc across. Fasten off. Weave in ends.

Sew a button on the front panel of the case to align with the buttonhole. Alternatively, sew a snap closure on the inside of the flap and the corresponding front panel for an even cleaner look.

Wrist Strap

A simple wrist loop is a lovely functional touch that makes the case easier to carry. To make one, ch 40 after fastening off your main case. Sl st in the first chain to form a loop. Fasten off, leaving a long tail. Thread this tail onto your tapestry needle and sew the strap securely to one of the seam corners at the top of the case. Knot several times and weave in the end.

Color Blocking and Stripes

Because this case works up in rows, adding stripes is incredibly simple. Just change yarn colors at the end of any row by finishing your last single crochet with the new color (pull through the final loop with the new yarn). Carry the old color along the edge if you’ll be returning to it within a few rows, or cut it and weave in as you go.

For a bold color blocked look, try dividing the case into three equal sections — about 10 rows each — in three different colors. This is a perfect opportunity to use up tiny scraps of yarn in colors that coordinate beautifully together.

Tips for the Best Results

Tension is everything. This project works best with a slightly firm tension so the fabric holds its structure. If your fabric feels floppy, try going down half a hook size. If it feels stiff and difficult to work, go up half a hook size.

Measure your phone before you start. Every phone model is a little different. Take 30 seconds to measure your phone’s width and height, then hold your swatch next to those measurements to make sure you’re on track before committing to the full case.

Wash and block your swatch. Cotton yarn in particular can shift in size after washing. If you plan to wash your finished case (and you probably should, since it’ll live in your bag), pre-wash your swatch so you know how the finished size will behave.

Weave in ends as you go. If you’re working with multiple colors, weaving in ends as you finish each color section makes the finishing process much more pleasant. Nothing is worse than arriving at the end of a project and facing a dozen loose yarn tails.

Use a stitch marker for in-the-round construction. When working Method Two, it’s easy to lose track of where one round ends and another begins. A simple stitch marker — even a piece of scrap yarn looped through a stitch — will save you a lot of counting.

Yarn Recommendations

If you’re reaching into your stash, any worsted weight cotton or cotton-blend yarn will work beautifully for this pattern. Lion Brand 24/7 Cotton is a perennial favorite in the crochet community for its durability, washability, and wide color range. Paintbox Yarns Simply DK is a wonderful choice if you want to work at a slightly lighter weight.

For something extra cozy, try a soft acrylic like Caron Simply Soft or Red Heart Soft. These yarns are affordable, come in a huge range of colors, and create a plush, cushiony fabric that cradles your phone nicely.

If you’re committed to using stash yarn, just make sure whatever you choose is roughly the same weight throughout so the tension stays consistent. Mixing a DK-weight yarn with a worsted-weight yarn mid-project will result in an uneven fabric, so stick to one weight even if you’re color-blocking with different brands.

Gifting Ideas

This smartphone case makes a thoughtful, handmade gift that most people genuinely appreciate because it’s both personal and practical. Here are a few ways to tailor the project for different recipients.

For a friend who loves minimalism, work the whole case in a single neutral color — a creamy off-white, a soft taupe, or a cool dove grey — and skip the flap in favor of a clean, open top. Add a wrist strap in a contrasting color for a subtle pop.

For someone who loves color, go wild with a striped or color-blocked design using their favorite shades. You can even use their sports team colors, the colors of their country’s flag, or shades that match their everyday bag.

For a tech-loving teenager or young adult, try a graphic motif on the front panel. You could surface embellish a simple lightning bolt, star, or initial using embroidery or duplicate stitch after the case is complete.

For a coworker or casual acquaintance, a tidy, single-color case in a sophisticated yarn like a muted terracotta or forest green feels polished and giftable without being overly personal.

Whichever direction you go, finishing the gift off with a handwritten tag that includes care instructions adds a professional touch that elevates the whole package.

Caring for Your Crochet Phone Case

The care instructions for your finished case will depend largely on the yarn you used. Cotton yarn is generally machine washable on a gentle cycle and can be laid flat to dry. Acrylic is also typically machine washable and dries faster than cotton. If you’ve used a wool or wool-blend yarn, hand wash in cool water and block flat to dry to avoid any shrinkage or felting.

Because the case lives in your bag or on your nightstand, it will pick up lint, dust, and the occasional mystery crumb. A quick hand wash every few weeks will keep it looking fresh. If you used cotton yarn, the case may actually get softer and more supple with each wash, which is a bonus.

Share Your Make

If you use this free crochet smartphone case pattern to make something wonderful, we’d love to see it. Tag your photos with #CrochetBits so we can find your work and celebrate your creativity. Whether you stuck to the pattern exactly or made it completely your own with wild colors and custom sizing, every version of this little case is worth sharing.

This community is built around the joy of small, scrappy, satisfying makes — and your finished case is exactly that. Come find us, share your photos, and let us know which yarn you used. Happy crocheting, and happy crafting with every last bit.