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Random Avatar Generator

Create a private initials avatar as a 128, 256, or 512 pixel circle or rounded-square PNG.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Enter a name or label and choose the PNG size and shape.
  2. 2.Select Random color until the background fits your use, then choose Create avatar.
  3. 3.Inspect the local preview and download the exact-size PNG.

About Random Avatar Generator

Random Avatar Generator creates a simple initials-based profile image without uploading a name or picture. Enter a name or short label, choose 128, 256, or 512 pixels, select a circle or rounded square, choose a random palette color, create the preview, and download a PNG. All drawing and temporary file creation stay in the current browser tab.

Initials are derived predictably. A single word contributes its first Unicode character. Multiple words contribute the first character of the first and last words, so Alex Morgan becomes AM and a middle name does not change the result. Surrounding and repeated whitespace is ignored. Empty input displays a question mark instead of producing a blank image.

Uppercasing is bounded after character extraction. Some letters can expand into multiple characters when uppercased, so the tool keeps only the first resulting code point from each selected word. This prevents an unusual name from overflowing the intended one-or-two-initial design while preserving common accented initials. Complex emoji sequences and script-specific casing can still render differently across system fonts.

The output size is always square and limited to three practical choices. The circle touches the canvas edges and leaves transparent corner pixels. The rounded-square option fills the canvas with a corner radius equal to sixteen percent of the size. Both shapes use the selected background, centered white initials, system fonts, and a font size proportional to the canvas.

Random color selection uses Web Crypto rather than Math.random. It samples an unsigned 32-bit value and uses rejection sampling before mapping to one of eight fixed dark backgrounds. This avoids modulo bias in the palette index. The palette is a visual product choice, not a claim about a person's identity, gender, ethnicity, organization, or brand.

Changing the name, size, or shape invalidates the old preview. A new asynchronous PNG export cannot overwrite a newer job, and replaced Object URLs are revoked. Invalid dimensions, unsupported shapes, malformed palette entries, unavailable canvas support, missing secure randomness, and failed PNG encoding produce explicit errors instead of a corrupt download.

The downloaded file name is built from lowercase ASCII letters and digits in the entered label, separated with hyphens, followed by -avatar.png. If no safe filename characters remain, it uses avatar-avatar.png. The visible initials can still contain non-ASCII characters because filename safety and rendered text are handled separately.

PNG preserves transparent corners around a circle. The preview is scaled for the page, but the downloadable canvas remains exactly 128, 256, or 512 pixels. Tests cover names with one and multiple words, accented initials, uppercase expansion, empty text, allowed sizes and shapes, unique palette entries, deterministic random selection, filename normalization, and invalid-size rejection. Browser rendering of letterforms can vary slightly by operating system font.

A generated avatar should be reviewed at its actual destination size. Very small UI placements can make two initials harder to read, while a 512-pixel file does not add typographic detail beyond the browser's chosen system font. The three output sizes are raster dimensions, not print measurements, and the tool does not attach DPI, color-profile, EXIF, ownership, or identity metadata.

This tool does not generate a face, photograph, identicon hash, QR code, NFT, social-media account, biometric likeness, or AI portrait. It does not search for a person, verify ownership of a name, store a profile, or publish the result. For brand assets, accessibility-reviewed color systems, vector originals, or exact cross-platform typography, use a design tool and an approved brand font.

Methodology & sources

Normalize whitespace, extract and bound the first uppercased Unicode character from the first and last name parts, constrain output to 128/256/512 pixels and circle/rounded-square shapes, select one of eight unique dark palettes with Web Crypto rejection sampling, draw the natural-size canvas with transparent background and centered initials, encode PNG, reject empty output, guard stale jobs, and revoke replaced Object URLs.

Frequently asked questions

How are initials chosen?
The first character of the first word and, when present, the first character of the last word are used.
Is the name uploaded or stored?
No. Initial extraction, random palette choice, drawing, preview, and download creation happen locally.
Why can the font look slightly different elsewhere?
Canvas uses the browser's system sans-serif font, so letter shapes can vary by operating system.
Does random color change the initials?
No. It changes only the background palette; initials continue to come from the entered name.

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