v1.2 · Free trial · Windows

Label thousands of images.
Let AI draw first.

A fast, offline-first annotation tool for Windows — draw boxes and polygons in seconds, let a local vision-language model pre-annotate whole folders, and review every AI draft before it counts.

AIpre-annotation, fully offline
2shapes — boxes & polygons
30day free trial
10interface languages

Why FlyLabelImg?

Draw, let AI draft, review and export — one lightweight app, your data never leaves the machine.

🤖

AI Auto-Annotation

A local vision-language model (Qwen3.5-VL via llama-server, started automatically) pre-annotates the current image or a whole folder.

⚡

Review-First Workflow

Every AI box lands as a pending draft. Confirm with Enter, reject with Esc — nothing silently overwrites your work.

🧲

Overlap Dedup

Re-running AI on an annotated image? Results that duplicate your existing boxes (same class, IoU > 0.7) are dropped automatically.

⬛

Boxes & Polygons

Rectangle and polygon tools on a smooth, zoomable canvas with per-class colors.

🏷️

Category Management

Per-class colors and live counts, a default class for new boxes, double-click to re-label instantly.

✅

Annotation Check

One click finds out-of-bounds, tiny, duplicate and unknown-class boxes before they reach your training set.

💾

VOC & YOLO Formats

Pascal VOC XML and YOLO txt sidecar files, switchable per project — stored right next to your images.

🖼️

File Panel

Thumbnail browser with all / unlabeled / pending / done filters and per-image progress badges.

⌨️

Keyboard-First

W to draw a box, A/D to walk pending drafts, Enter/Esc to judge, ←/→ to flip images — no menu diving.

🔒

Fully Offline

Inference runs on your machine — images never leave it. No ads, no telemetry, no cloud account.

Download FlyLabelImg

30-day free trial. No sign-up. No bundleware.

For Windows

Windows 10/11 · x64 · Installer & Portable

Installer x64
Portable x64
Version v1.2
SHA-256 checksums
Lost your license? Get it re-sent
  • ✔ No ads, no bundling, no telemetry
  • ✔ 30-day free trial with all features
  • ✔ Volume licensing available — contact us

Simple, honest pricing

FlyLabelImg comes with a 30-day free trial with all features. Buy a license when you’re ready — one payment, updates included for the license term.

1-Year License

$39

one-time · 1 year of updates

  • All FlyLabelImg features
  • Free updates for 1 year
  • License file delivered by email
  • Email support

Secure checkout handled by Creem. After payment your license file is emailed to you — activate it in FlyLabelImg via Help → License Management.

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