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Thinking Icons PNG & SVG - Page 6

Browse 1,434 different thinking icons in 141 unique design styles. Download thinking icons in PNG, SVG, PDF, or ZIP formats.

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  3. Clean line icon of a head profile with a gear inside. Used for psychology, mental health, settings, and cognitive tools.
  7. Clean line icon of a human head outline with a question mark inside. Used for psychology, mental health, and self-reflection apps.
  11. Rounded hybrid solid and line icon of a face with two eyes and a smirk. Used for playful reactions and mood indicators.
    Free
  16. Clean solid icon of a six-lobed shape with a central hexagon and dot beside a curved arc. Used for science and brain research.
  17. Sharp duotone icon of a padlock inside an angular shield. Used for account security and access control.
  18. Sharp line icon of a padlock inside a shield outline. Used for account security and access protection.
  19. Sharp duotone icon of an angular user bust outline surrounding a padlock. Used for account security, sign-in, and permissions.
    Free
  20. Sharp line icon of a padlock inside a shield outline. Used for account security, privacy, and access control.
    Free
  21. Brain Head Puzzle Icon from Freehand Duotone Set
  23. Creativity Idea Conversation Icon from Freehand Duotone Set
  24. Clean solid icon of a head silhouette with three arrows inside. Used for ADHD symptoms and mental health.
  25. Adhd Disorder Symptoms 2 Icon from Ultimate Light Set
  28. Playful creative icon of a light bulb above a suited person. Used for ideas, innovation, and brainstorming.
  30. Clean line icon of a light bulb above a faceted head outline. Used for ideas, creativity, learning, and brainstorming.
  31. Bold solid icon of a black shape with four white arrows in a 2x2 grid. Used for OCD symptoms and mental health.
  32. Ocd Disorder Symptoms 1 Icon from Ultimate Regular Set
  34. Clean flat icon of a split brain with blue halves and dark sections. Used for neuroscience, learning, and AI.
  35. Clean colored solid icon of a symmetrical green brain with dark blue contours. Used for neuroscience, learning, and cognition.
  36. Bold solid icon of a brain with two lobed hemispheres split by a central gap. Used for neuroscience, intelligence, and cognition.
  37. Clean duotone icon of a brain with mirrored lobes and central stem. Used for AI, memory, and health.
  38. Clean duotone icon of a symmetrical brain with rounded lobes. Used for AI, neuroscience, and memory interfaces.
    Free
  39. Bold colored solid icon of a brain with two lobes and inner folds. Used for AI, learning, and cognition.
    Free
  40. Clean hybrid solid and line icon of a two-lobed brain with curved inner contours. Used for neuroscience, memory, and AI.
  43. Clean line icon of a stylized brain with two symmetrical lobes and inner folds. Used for AI, memory, ideas, and neuroscience.
    Free
  44. Bold solid icon of a profile head with a magnifying glass and question mark. Used for psychology, analysis, and mental health.
  45. Single Man Idea Icon from Ultimate Duotone Set
  46. Playful creative icon of a man head, circular bubble, and light bulb. Used for ideas, creativity, and innovation.
  47. Clean solid icon of a person silhouette, bulb, and circle with a curved cutout. Used for ideas and user concepts.
  48. Single Man Idea Icon from Ultimate Regular Set