svg · optimize · toggles · local

Optimize SVG markup

SVGO-style cleanup in your browser. Toggle 11 rules — comments, editor cruft, default attrs, decimal precision. Live preview, byte savings, copy or download.

SVG Optimizer
Before
329 B
input
After
86 B
output
Saved
73.9%
ratio
Rules
11
active
input · svg source
output · optimized + preview
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M1.235 2"/></svg>
Quick Start

How SVG optimization works

Eleven independent rules trim cruft from SVG markup. Toggle off any rule whose side effect you need to keep — like the title for screen readers.

  1. 01

    Paste or upload

    Drop in raw SVG markup or an entire file.

    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

    Toggle rules

    Each transform has its own checkbox.

    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.

    rulesoptionslive previewencoderquality
    rules · tunable11 · live
    comments · metadata · …
    options applied · liveencoder · live
  3. 03

    Preview live

    The preview updates in real time and shows percent saved.

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

    liverenderCanvas 2Dpreviewpx-perfect
    saved · resampledsee stats · px-perfect
    % saved
    preview · livepx-perfect
  4. 04

    Copy or download

    Use the smaller markup wherever you like.

    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
    shipped
    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 optimize SVG

Design exports, icon libraries, performance work.

Inkscape exports

Strip sodipodi/inkscape namespaces and metadata. 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

Icon system

Trim every glyph in a shared sprite. 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

Component libraries

Smaller payload per shipped icon component. 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

CMS-uploaded SVGs

Clean user-supplied assets before publishing. 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

Performance audits

Shave kilobytes off the critical render path. 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

Print-to-web

Reduce Illustrator/Affinity export bloat. 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

It applies a similar set of safe rules in pure browser JavaScript — no install, no upload.
Screen readers announce <title> as the SVG's accessible name. Disable the toggle if your icon is purely decorative.
Defaults are conservative. Only disable rules whose effect you understand if your SVG is unusual.
CSS rules inside style elements are preserved untouched.
No. The optimizer runs entirely in your browser.
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