There are lots of alternatives you can use. Some sewers suggest fabric glue, while others go with clear nail polish. The trick is to have a clean edge.
Fray-Stop! [3504] - $4.00 : Yarn Tree, Your X-Stitch Source
Stop fabric from fraying with this easy to use adhesive that dries clear soft and flexible Manufactured in United States And if you “forget” or don't
Aleene's 15628 Stop-Fraying 2oz
SpraynBond Fabric Stiffener Spray –
Evenweave vs aida vs linen cross stitch fabric - Gathered
A Minimalist Finish for No-Fray Fabrics - Threads
June Tailor Fray Block prevents fraying on fabric and ribbon. It has an ultra-fine precision tip and is great for sealing serged thread ends and is
June Tailor Fray Block - 1 1/2 oz.
Alternatives to Sewing: 15 Tools for the No-Sew Crafter
News - Folkwear
How to stop the fray… : r/myog
Wee Princess Pea PDF Pattern for a Purse-sized Fairy Tale Playset