svg · minify · safe · local

Shrink SVG markup

Strip XML declarations, comments, redundant whitespace, default fills, empty groups, and trim long decimals. Output is byte-for-byte safe. Runs entirely in your browser.

SVG Minifier
Input
363 B
6 lines
Output
277 B
1 lines
Status
ready
live
Ratio
0.76×
out/in
input · svg source
output · minified svg
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><path d="M12 21.35l-1.45-1.32C5.4 15.36 2 12.28 2 8.5 2 5.42 4.42 3 7.5 3c1.74 0 3.41 0.81 4.5 2.09C13.09 3.81 14.76 3 16.5 3 19.58 3 22 5.42 22 8.5c0 3.78-3.4 6.86-8.55 11.54L12 21.35z"/></svg>
Quick Start

How SVG minify works

Removes safe-to-strip cruft: XML declarations, comments, repeated whitespace, default fill="black" attributes, empty groups, and very long decimals. Visual output stays identical.

  1. 01

    Paste SVG

    Drop in any SVG markup — icons, logos, illustrations.

    Files stay in memory as an HTMLImageElement — the original bytes are never uploaded, and EXIF metadata is preserved until you explicitly transform it.

    inputuploadcanvaslocaldecode
    input · bytessvg · loaded
    <svg ...>...</svg>
    loaded · decodedcanvas · ready
  2. 02

    Auto-clean

    Strips declarations, comments, whitespace, default fills.

    Encoder quality is exposed where the format supports it — JPEG and WebP get a 0–1 quality slider; PNG is lossless. Options re-render the canvas immediately.

    passoptionslive previewencoderquality
    strip · tunablesafe · live
    comments · ws · defaults
    options applied · liveencoder · live
  3. 03

    Round decimals

    Long 0.123456789 becomes 0.123 — typically invisible.

    Pixel work runs on the Canvas 2D context — drawImage resamples with the browser’s bilinear filter and getImageData/putImageData back per-pixel passes.

    roundrenderCanvas 2Dpreviewpx-perfect
    decimals · resampled3 · px-perfect
    0.1234… → 0.123
    preview · livepx-perfect
  4. 04

    Copy or download

    Drop into HTML, CSS, or save as a smaller .svg file.

    Downloads ship via a hidden anchor with an object URL — no server round-trip, and the file on disk is untouched. The output filename inherits a sensible suffix.

    exportdownloadblobclient-sideobject URL
    ok · blobready · saved
    saved
    shipped · ready to shipsuccess
Pro tips

Browser-only image work that scales

Convert with quality control

JPEG/WebP let you pick a 0–1 quality. Default 0.92 is a good compromise of size and visible quality.

PNG isn&rsquo;t free

Use PNG only for transparency or sharp edges. For photos, WebP is smaller at the same perceived quality.

Strip EXIF for privacy

Photo EXIF often contains GPS, camera model, and timestamps. Strip before sharing public uploads.

Watch the colour profile

Convert to sRGB before web export. Wide-gamut images render oversaturated in non-managed browsers.

AVIF when it&rsquo;s available

AVIF beats WebP on size at the same quality. Detect support via <picture> with fallbacks.

Lazy-load below the fold

Add loading="lazy" on <img>. The browser handles scheduling — no IntersectionObserver needed.

Use Cases

When to minify SVG

Icons, inline SVG, CSS data URIs, bundle size.

Inline icons

Reduce HTML payload for every page that ships icons. Decoded into a Canvas 2D context — original bytes never leave the tab, so you can process customer-uploaded photos, internal screenshots, or sensitive diagrams without privacy concerns.

px-perfect

CSS data URIs

Encode smaller SVGs as background-image. Encoders expose quality 0–1 where the format supports it (JPEG, WebP); PNG and AVIF stay perceptually lossless. Pick 0.85 for web, 0.95 for archival, 0.7 for thumbnails.

quality-tunable

Design exports

Clean up Figma or Illustrator exports. Pair with the EXIF Stripper before sharing user-uploaded photos publicly. Camera serial numbers, GPS coordinates, and timestamps often hide in image metadata and leak more than the picture itself.

format-aware

Icon sprites

Shrink every glyph before sprite assembly. Output preserves colour profile (sRGB) so it renders consistently across browsers, monitors, and print pipelines. Wide-gamut workflows can opt into Display P3 for modern Apple devices.

EXIF-safe

Bundle trim

Drop bytes from large icon libraries. Re-runs only on option changes, never on window resize, so the canvas stays responsive on large images. drawImage uses the browser's bilinear filter for fast resampling.

client-side

CDN assets

Less to serve, faster first paint. Downloads as .png, .jpg, .webp, or .avif with the correct MIME so editors apply native handling on save. The filename inherits a sensible suffix derived from the input.

compression-ready
FAQ

Frequently asked questions

Yes — only universally-safe transforms run. For aggressive cleanup try SVG Optimizer.
No. Only redundant default fill=black attributes are stripped, since SVG renders black by default.
CSS rules inside <style> blocks are preserved untouched.
Hand-written SVGs trim 10–20%; design-tool exports often drop 30–50%.
No. The minifier runs entirely in your browser.
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