--- title: "Flex Solid - Free Icons Set - 499 customizable PNGs, SVGs, PDFs" product: "Streamline Icons, Illustrations and Elements" asset_count: 499 url: /icons/flex-solid-free canonical_url: "https://www.streamlinehq.com/icons/flex-solid-free" summary: "Flex Solid - Free renders flowing curves as single-color fills with transparent cutouts for internal detail." --- # Flex Solid - Free Flex Solid - Free renders flowing curves as single-color fills with transparent cutouts for internal detail. 499 icons License: Free ## Fit & Recommendation ### Primary use cases - Use filled icons to mark selected controls or emphasize a section. - Use symbols to identify sections in documentation or presentations. #### Practical guidance - Check the artwork against each intended background. - Inspect small gaps and edges at the final display size. - Keep the background visible through the cutouts. - Match apparent icon weight with nearby text. ## Visual & Technical Specs ### Visual properties - Transparent cutouts expose the background. - Smooth curves form the edges without geometric corners. - Each asset uses a single color. #### Technical specifications - Grid: 24x24px. ### Emotional Scores These scores describe visual character. They are editorial judgments, not measured audience reactions. Each scale runs from 0.00 at the first word to 1.00 at the second, with 0.50 in the middle. For example, a lower Warm to Cold score means a warmer appearance. Flex Solid - Warm to Cold: Warm (0.35). - Soft to Hard: Slightly soft (0.45). - Friendly to Formal: Slightly friendly (0.40). - Playful to Serious: Slightly playful (0.45). - Human to Mechanical: Human (0.30). ## Pairing & Compatibility ### Typography pairing - Primary: Choose enough text weight to balance the heavier parts of the artwork. For example, try Plus Jakarta Sans SemiBold. - Alternative: Choose enough text weight to balance the heavier parts of the artwork. For example, try Outfit SemiBold. - Body: Use a lighter weight for supporting text and compare it with the artwork at reading size. For example, try Inter Regular, Mulish. - Caution: Compare heavier or decorative type at the final size so it does not overpower the artwork. ## Categories - [Interface Essential](/icons/flex-solid-free/interface-essential) - [Images Photography](/icons/flex-solid-free/images-photography) - [Money Shopping](/icons/flex-solid-free/money-shopping) - [Programming](/icons/flex-solid-free/programming) - [Computer Devices](/icons/flex-solid-free/computer-devices) - [Phone](/icons/flex-solid-free/phone) - [Map Travel](/icons/flex-solid-free/map-travel) - [Mail](/icons/flex-solid-free/mail) - [Food Drink](/icons/flex-solid-free/food-drink) - [Nature Ecology](/icons/flex-solid-free/nature-ecology) - [Entertainment](/icons/flex-solid-free/entertainment) - [Shipping](/icons/flex-solid-free/shipping) - [Culture](/icons/flex-solid-free/culture) - [Health](/icons/flex-solid-free/health) - [Work Education](/icons/flex-solid-free/work-education) - [Artificial Intelligence](/icons/flex-solid-free/artificial-intelligence) ## Example icons - [3d Coordinate Axis](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/3d-coordinate-axis-a8vema15zgtac672xj0esl.png/3d-coordinate-axis-m3amtt0p6fpqfo3khpurf.png?_a=DATAiZkSZAA0) - [3d Rotate 1](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/3d-rotate-1-0kumwo7pfbpjoegziw7rkn.png/3d-rotate-1-b5hr1y8y5aw7pdzacgzik.png?_a=DATAiZkSZAA0) - [3d Rotate Y Axis](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/3d-rotate-y-axis-k2i1fpqi4qq7ut15mz1fnm.png/3d-rotate-y-axis-rbl8fqvdv0p2q6mp5y3dn3.png?_a=DATAiZkSZAA0) - [Align Back 1](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/align-back-1-5xp930qkg8s8dszhc9ue8g.png/align-back-1-i90u3olf8amih9xp409b3p.png?_a=DATAiZkSZAA0) - [Align Selection](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/align-selection-kv7f1wdftf91qsasn5hbb2.png/align-selection-kd17wip272yn6pj4jymxc.png?_a=DATAiZkSZAA0) - [Align Text Top](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/align-text-top-agmms58i7mnmopjh2qc83r.png/align-text-top-89b6ju6qq0oyxglqsxb6la.png?_a=DATAiZkSZAA0) - [Align Top 1](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/align-top-1-j6s7r49lsca54nuy1jrkym.png/align-top-1-dki3tglrzybj1zbc37wmc.png?_a=DATAiZkSZAA0) - [Archive Box](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/archive-box-6k3yjwoyo5tlpb58ot7x28.png/archive-box-8bfeztocpps51nhahcnlc.png?_a=DATAiZkSZAA0) - [Arrow Cursor 2](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/arrow-cursor-2-9zmt65b6fbwlk5qyzr3w7s.png/arrow-cursor-2-029koos9tjfpl03c7mqq1h8.png?_a=DATAiZkSZAA0) - [Arrow Cursor Click 2](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/arrow-cursor-click-2-0mnc19n2bkw35amjlusxfh.png/arrow-cursor-click-2-6gj3cgoddl7ucrdi4mhyar.png?_a=DATAiZkSZAA0) - [Arrow Cursor Move](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/arrow-cursor-move-3pt15wi3hl1wwlylu0109.png/arrow-cursor-move-kq1idwphp4ae2aypbygwx.png?_a=DATAiZkSZAA0) - [Arrow Expand](https://assets.streamlinehq.com/image/private/w_34,h_34,ar_1/f_auto/v1/icons/interface-essential/arrow-expand-yu16e5j8q3hokc3ushztv.png/arrow-expand-nkqw9ueogmrbce49lrwaug.png?_a=DATAiZkSZAA0) --- [View full sitemap](/sitemap.md)