Filbert Frog Knit Toy — Free Knitting Pattern

There is something quietly magical about a handmade toy. It carries warmth in its stitches, intention in its seams, and a kind of permanence that no plastic plaything can quite replicate. If you have been looking for a beginner-friendly knitting project that delivers a truly delightful finished object, you have arrived at the right place. Today we are sharing the complete free knitting pattern for Filbert Frog — a chubby, cheerful little amphibian who is as fun to knit as he is to gift.

Whether you are making Filbert for a newborn, a toddler, a frog-obsessed friend, or simply for the joy of the craft itself, this pattern walks you through every step. We will cover materials, gauge, abbreviations, the full pattern instructions, finishing techniques, and plenty of tips along the way. Pull up your favorite chair, put the kettle on, and let us get knitting.

Why Knit a Frog Toy?

Knitted soft toys — often called knitted amigurumi, knitted stuffies, or knitted plushies — have surged in popularity in recent years, and it is not hard to understand why. Unlike crocheted amigurumi, which dominate the stuffed-toy crafting world, knitted toys have a softer, stretchier fabric that gives them an especially huggable quality. The stitches blend together beautifully, creating smooth color transitions and a plush texture that babies and children adore.

Frogs, in particular, are perennially beloved toy subjects. They are cheerful, distinctive in shape, and offer interesting construction challenges — the wide, flat head, the round body, the dangling legs — that make knitting one genuinely satisfying. Filbert has been designed to hit the sweet spot between cute and characterful, with a slightly oversized head, big button eyes, and little stuffed legs that splay out in an endearing way.

He is also a wonderful project for knitters who want to move beyond scarves and dishcloths but are not quite ready to tackle a full garment. The individual pieces are small and manageable, and the construction teaches skills like shaping, picking up stitches, and simple mattress stitch seaming that will serve you well in countless future projects.

Materials You Will Need

Before you cast on, gather your supplies. Here is everything you need to knit your very own Filbert Frog.

Yarn: Approximately 100 grams of DK weight yarn (also called light worsted or 8-ply) in your main color — Filbert is traditionally green, but sky blue, mustard yellow, or even a heathered grey make wonderfully quirky alternatives. You will also need a small amount of cream or white yarn for the eyes and a tiny bit of black or dark brown for the pupils.

Needles: 3.5 mm (US 4) double-pointed needles or a short circular needle for working in the round. If you prefer working flat and seaming, straight needles in the same size work perfectly well for the body pieces.

Other Supplies: Polyfill stuffing (or clean wool roving if you prefer a more natural fill), two 12mm safety eyes or two small black buttons for a baby-safe alternative if you embroider the eyes instead, a tapestry needle for seaming and weaving in ends, stitch markers, and a small amount of waste yarn for provisional cast-ons if you choose that construction method.

Gauge: 22 stitches and 30 rows = 4 inches (10 cm) in stockinette stitch. Gauge matters here because it affects the size of your finished frog and how tightly the stuffing is enclosed. A looser gauge means the stuffing can poke through the fabric, so aim to match gauge or go slightly tighter if anything.

Finished Size: Approximately 7 inches tall and 5 inches wide when stuffed. This is a comfortable size for little hands — big enough to hug, small enough to carry everywhere.

Abbreviations

Throughout this pattern, the following abbreviations are used. If you are newer to knitting, do not be intimidated — each technique is simpler than it looks, and there are plenty of tutorial videos available for any stitch you have not tried before.

CO — cast on. BO — bind off. K — knit. P — purl. K2tog — knit two stitches together (a right-leaning decrease). SSK — slip, slip, knit (a left-leaning decrease). M1L — make one left (an increase that leans left). M1R — make one right (an increase that leans right). KFB — knit into the front and back of the stitch (a simple increase). St(s) — stitch or stitches. RS — right side. WS — wrong side. PM — place marker. SM — slip marker. Rnd(s) — round or rounds.

Pattern Notes

Filbert is knitted in several separate pieces — the body, the head, two arms, two legs, and two eye discs — and then seamed together. This construction method makes it very easy to get the stuffing density exactly right in each piece before you close everything up.

The body and head are worked flat in rows, then seamed along the sides. The arms and legs are worked in the round on double-pointed needles for a seamless finish. The eye discs are small flat circles knitted separately and attached, giving that wonderful wide-eyed frog look.

Read through the entire pattern before you begin. This is good practice with any knitting pattern, as it helps you anticipate what is coming and understand how the pieces fit together.

The Pattern

Body (Make One)

The body is a rounded rectangle that becomes a plump little torso when stuffed. Using your main color, cast on 30 stitches.

Work in stockinette stitch (knit on RS rows, purl on WS rows) for 6 rows.

Increase round (RS): K1, M1R, knit to last stitch, M1L, K1. You now have 32 stitches.

Purl one WS row.

Repeat these two rows three more times, increasing every RS row, until you have 38 stitches.

Work even in stockinette for 14 rows without increasing, ending after a WS row.

Decrease row (RS): K1, SSK, knit to last 3 stitches, K2tog, K1. You now have 36 stitches.

Purl one WS row.

Repeat these two rows five more times until you have 26 stitches.

Next RS row: K1, SSK, knit to last 3 stitches, K2tog, K1. (24 stitches.)
Next WS row: P1, P2tog, purl to last 3 stitches, P2tog tbl, P1. (22 stitches.)

Repeat the last two rows once more. You now have 18 stitches.

Bind off all stitches loosely. Fold the piece in half with right sides together, matching the cast-on edge to the bind-off edge, and seam the two side edges using mattress stitch, leaving a gap of about 2 inches for stuffing. Turn right side out, stuff firmly, and close the gap with mattress stitch. Set aside.

Head (Make One)

The head is the widest and most distinctive part of Filbert. Cast on 14 stitches in your main color.

Row 1 (WS): Purl.
Row 2 (RS): KFB in each stitch across. (28 stitches.)
Row 3: Purl.
Row 4: [K1, KFB] to end. (42 stitches.)
Rows 5–7: Work even in stockinette.
Row 8: [K5, KFB] to end. (49 stitches.)
Rows 9–19: Work even in stockinette.

Now begin the decreases to shape the back of the head.

Row 20: [K5, K2tog] to end. (42 stitches.)
Row 21: Purl.
Row 22: [K4, K2tog] to end. (35 stitches.)
Row 23: Purl.
Row 24: [K3, K2tog] to end. (28 stitches.)
Row 25: Purl.
Row 26: [K2, K2tog] to end. (21 stitches.)
Row 27: Purl.
Row 28: [K1, K2tog] to end. (14 stitches.)
Row 29: Purl.
Row 30: K2tog across. (7 stitches.)

Cut yarn, leaving a long tail. Thread the tail through the remaining 7 stitches and pull tight to close the top. Seam the head into a sphere shape using mattress stitch along the long side edge, stuffing firmly before closing. The cast-on edge becomes the bottom opening through which you will attach the head to the body.

Arms (Make Two)

Using double-pointed needles and your main color, cast on 10 stitches and join to work in the round, being careful not to twist.

Rnds 1–3: Knit.
Rnd 4: [K3, KFB, K3, KFB] — 12 stitches.
Rnds 5–8: Knit.
Rnd 9: [K2, K2tog] to end. (9 stitches.)
Rnds 10–14: Knit.
Rnd 15: [K1, K2tog] to end. (6 stitches.)
Rnds 16–20: Knit.

Cut yarn, thread through remaining stitches, pull tight, and close. Stuff lightly — arms should be slightly floppy so they hang naturally. Leave the cast-on end open for attachment.

Legs (Make Two)

Legs are worked the same as arms but are a little longer to give Filbert his characteristic splayed frog posture.

Cast on 12 stitches and join in the round.

Rnds 1–4: Knit.
Rnd 5: [K4, KFB, K4, KFB] — 14 stitches.
Rnds 6–10: Knit.
Rnd 11: [K2, K2tog] to last 2 sts, K2. (11 stitches.)
Rnds 12–20: Knit.
Rnd 21: [K1, K2tog] to last 2 sts, K2. (8 stitches.)
Rnds 22–28: Knit.

Cut yarn, thread through remaining stitches, pull tight. Stuff firmly at the foot end and lightly through the upper leg. Leave the cast-on end open.

Eye Discs (Make Two in White or Cream)

These small flat circles give Filbert his wide, expressive eyes.

Cast on 4 stitches.

Row 1 (WS): Purl.
Row 2: KFB in each stitch. (8 stitches.)
Row 3: Purl.
Row 4: [K1, KFB] to end. (12 stitches.)
Rows 5–7: Work even.
Row 8: [K1, K2tog] to end. (8 stitches.)
Row 9: Purl.
Row 10: K2tog across. (4 stitches.)

Cut yarn and pull through remaining stitches. Seam lightly into a small dome or leave flat, depending on the look you prefer.

Assembly

This is the stage where Filbert really comes to life, and it is deeply satisfying.

Start by attaching the head to the body. Pin the head in place on the top of the body — positioned slightly toward the front for the best posture — and use your tapestry needle and a length of main color yarn to sew all around the opening. Use small, neat stitches and go around the perimeter twice for security.

Next, position the arms on either side of the body, roughly at the upper third. Filbert’s arms look most natural pointing slightly downward and outward. Pin them in place and sew securely through the cast-on edge.

For the legs, position them at the lower portion of the body, angled outward — this is what gives a frog toy that distinctive splayed-leg silhouette. Sew each one firmly in place, again going around the attachment point twice.

Now for the eyes. Press your eye discs onto the front of the head, up high and set wide apart — this is the hallmark of a frog face. If you are using safety eyes, push them through the center of each disc and then through the head fabric before closing the head. If you are making a version for a baby or young child, embroider large round pupils in black onto the center of each disc instead and sew the discs flat to the head.

Use a length of black yarn or dark brown embroidery floss to add a simple curved smile below the eyes — a few horizontal stitches form a gentle U shape that gives Filbert his permanently cheerful expression.

Weave in all remaining ends carefully, going in multiple directions to make sure nothing works loose through the inevitable squeezing and washing that a loved toy will endure.

Tips for Getting the Best Results

The most common issue knitters encounter with stuffed toys is seeing the white polyfill through the fabric. To avoid this, knit at a slightly tighter gauge than the pattern calls for, or hold two strands of yarn together for a denser fabric. Alternatively, use a non-white stuffing — natural wool roving in a natural or pale green color works beautifully inside a green frog.

When stuffing, add the filling gradually and keep checking the shape. It is easy to either understuff (leaving the toy squishy and shapeless) or overstuff (making the fabric stretch and look lumpy). Aim for a firm but squeezable result, particularly in the head and body.

Mattress stitch seaming produces invisible joins and is well worth taking the time to learn properly if you have not already. Work slowly, catching one bar of yarn from each side alternately, and pull the yarn gently to close the seam without gathering it.

If you plan to give Filbert as a gift for a child under three, always use embroidered eyes rather than button or safety eyes. Even safety eyes can theoretically be pulled free by a determined toddler. Embroidery is completely flush with the fabric and completely safe.

Yarn Substitutions and Color Ideas

The pattern works beautifully in any DK weight yarn with a smooth or semi-smooth texture. Avoid highly textured yarns like bouclé or mohair blends, as they make it difficult to see your stitches and produce a muddier finished fabric.

For a classic Kermit-style frog, go with a bright Kelly green or lime. For something more realistic, a muted olive or sage green gives a wonderful natural look. Filbert also looks incredibly sweet in non-traditional colors — a pale lavender frog with cream eyes, or a warm terracotta frog with mustard accents, can feel truly one-of-a-kind.

If you want to add extra personality, consider knitting a small accessory. A tiny garter-stitch scarf in contrasting yarn takes about ten minutes and instantly gives Filbert a jaunty look. A miniature hat — just a small tube with a gathered crown — is another quick addition that turns a cute toy into an absolutely irresistible one.

Caring for Your Finished Frog

Because Filbert is destined for the hands and hearts of people who will love him vigorously, making him washable is important. Choose a superwash wool or a cotton-acrylic blend for the main yarn. These fibers can be machine washed on a gentle cycle and will hold their shape well through repeated cleaning. If you use non-superwash wool, hand washing in cool water is the better option.

When washing, reshape the toy gently while still damp and allow it to air dry flat or propped in a position that maintains its shape. Avoid tumble drying stuffed toys as the heat can melt or warp polyfill stuffing.

Making Filbert Your Own

One of the greatest joys of handmade toys is that they are endlessly customizable. Once you have knitted one Filbert