--- title: "Flex Line - Free Icons Set - 499 customizable PNGs, SVGs, PDFs" product: "Streamline Icons, Illustrations and Elements" asset_count: 499 url: /icons/flex-line-free canonical_url: "https://www.streamlinehq.com/icons/flex-line-free" summary: "Flex Line - Free follows smooth curves in light, single-color outlines." --- # Flex Line - Free Flex Line - Free follows smooth curves in light, single-color outlines. 499 icons License: Free ## Fit & Recommendation ### Primary use cases - Place icons beside navigation labels or controls. - 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. - Match apparent icon weight with nearby text. ## Visual & Technical Specs ### Visual properties - The icons have no fill. - The paths follow smooth, flowing curves. - Each asset uses a single color. #### Technical specifications - Grid: 24x24px. - Stroke: 1px. ### 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 Line - Warm to Cold: Warm (0.25). - Soft to Hard: Strongly soft (0.15). - Friendly to Formal: Friendly (0.30). - Playful to Serious: Playful (0.35). - Human to Mechanical: Strongly human (0.20). ## Pairing & Compatibility ### Typography pairing - Primary: Try softly curved letterforms to echo the rounded shapes. For example, try Plus Jakarta Sans. - Alternative: Try softly curved letterforms to echo the rounded shapes. For example, try Outfit. - Editorial: Try serif letterforms whose stroke detail complements the ornament or illustration. For example, try Libre Baskerville Light. - Body: Use a lighter weight for supporting text and compare it with the artwork at reading size. For example, try Inter Regular. - Caution: Compare letter shapes and apparent weight before combining a contrasting typeface with the artwork. Examples to compare include IBM Plex Sans, Neue Haas Grotesk. ## Categories - [Interface Essential](/icons/flex-line-free/interface-essential) - [Images Photography](/icons/flex-line-free/images-photography) - [Money Shopping](/icons/flex-line-free/money-shopping) - [Programming](/icons/flex-line-free/programming) - [Computer Devices](/icons/flex-line-free/computer-devices) - [Phone](/icons/flex-line-free/phone) - [Mail](/icons/flex-line-free/mail) - [Map Travel](/icons/flex-line-free/map-travel) - [Food Drink](/icons/flex-line-free/food-drink) - [Nature Ecology](/icons/flex-line-free/nature-ecology) - [Entertainment](/icons/flex-line-free/entertainment) - [Shipping](/icons/flex-line-free/shipping) - [Culture](/icons/flex-line-free/culture) - [Health](/icons/flex-line-free/health) - [Work Education](/icons/flex-line-free/work-education) - [Artificial Intelligence](/icons/flex-line-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-effe5a193hoggo0aqj9nx7.png/3d-coordinate-axis-pzsht1prnv1tcb9h2lqntj.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-ie9pgxz7mjn2xww042f5br.png/3d-rotate-1-lfj3z9s4mkf5e4e98mnr5.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-nsjxz25widpy2ktve378d.png/3d-rotate-y-axis-hz0jzmdys84ebgu1zj06bj.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-eekphaog8k6pgvuw8ayh.png/align-back-1-yhv7av2uuegxdu74zcor.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-ux5kifra4rfh9vrnb85h8d.png/align-selection-rndf8sie709wxsarh1roc.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-oyzdmlwfrf4loxpbsgweb.png/align-text-top-o1wld3llvowoi204t36m7.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-1-9dv525451a8sthgtnj5ke.png/align-top-1-pn5d1bpoirgn3t6ut0scvc.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-8wayjzqcz8id8cezs4b7ba.png/archive-box-3llz5dxuce4fq80w8q3hjm.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-gs2yg0hha9u0kzd6wh2zuv.png/arrow-cursor-2-qp9ivacrlwdwtdi41soj8l.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-2-6wq5la7ll4cpyuioiacpe.png/arrow-cursor-click-2-aevxja9wi5jnwvgfl2qsee.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-gtpvolma5lwykbeg9qe77l.png/arrow-cursor-move-evx5r6sl8zhjw9wevewt5d.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-b4wk2n59nganlbey1b7gc.png/arrow-expand-s44dvto0yi81f94lnvbcwh.png?_a=DATAiZkSZAA0) --- [View full sitemap](/sitemap.md)