HumanSignal / label-studio

Label Studio is a multi-type data labeling and annotation tool with standardized output format

gildas-lormeau / SingleFile

Web Extension for saving a faithful copy of a complete web page in a single HTML file

cvat-ai / cvat

CVAT is a leading data annotation platform for image, video, audio, and 3D datasets. It offers open-source, cloud, and enterprise products, as well as labeling services, with AI-assisted labeling, quality assurance, team collaboration, analytics, and developer APIs.

wkentaro / labelme

Image annotation with Python. Supports polygon, rectangle, circle, line, point, and AI-assisted annotation.

swaggo / swag

Automatically generate RESTful API documentation with Swagger 2.0 for Go.

windingwind / zotero-pdf-translate

Translate PDF, EPub, webpage, metadata, annotations, notes to the target language. Support 20+ translate services.

Kareadita / Kavita

Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.

gitkraken / vscode-gitlens

Supercharge Git inside VS Code and unlock untapped knowledge within each repository — Visualize code authorship at a glance via Git blame annotations and CodeLens, seamlessly navigate and explore Git repositories, gain valuable insights via rich visualizations and powerful comparison commands, and so much more

facebook / pyrefly

A fast type checker and language server for Python

purocean / yn

A highly extensible Markdown editor featuring version control, AI Copilot, document annotations, mind maps, document encryption, executable code snippets, chart embedding, HTML applets, plugins, and macro replacement. Its integrated sidebar terminal makes working with AI faster and more convenient.

strawberry-graphql / strawberry

A GraphQL library for Python that leverages type annotations 🍓

emissary-ingress / emissary

open source Kubernetes-native API gateway for microservices built on the Envoy Proxy

DarkaOnLine / L5-Swagger

OpenApi or Swagger integration to Laravel

dedoc / scramble

Modern Laravel OpenAPI (Swagger) documentation generator. No PHPDoc annotations required.

naomiaro / waveform-playlist

Multitrack Web Audio editor and player with canvas waveform preview. Set cues, fades and shift multiple tracks in time. Record audio tracks or provide audio annotations. Export your mix to AudioBuffer or WAV! Add effects from Tone.js. Project inspired by Audacity.

PHPantom-dev / phpantom_lsp

Fast PHP language server with deep type intelligence. Generics, Laravel, PHPStan annotations. Ready in an instant.

ultralytics / JSON2YOLO

Legacy JSON-to-YOLO dataset converter for COCO, LabelMe, Labelbox, VoTT, INFOLKS, and ATH annotations. Superseded by convert_coco() in the Ultralytics package.

suzuki-shunsuke / pinact

pinact is a CLI to edit GitHub Workflow and Composite action files and pin versions of Actions and Reusable Workflows. pinact can also update their versions and verify version annotations.

jspecify / jspecify

An artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.

syabro / neat-annotations

Hand-drawn CSS annotations for inline content

FasterXML / jackson-annotations

Core annotations (annotations that only depend on jackson-core) for Jackson data processor

minad / marginalia

:scroll: marginalia.el - Marginalia in the minibuffer

umputun / revdiff

TUI for reviewing diffs, files, and documents with inline annotations

dokieli / dokieli

:bulb: dokieli is a clientside editor for decentralised article publishing, annotations and social interactions

aviatesk / JET.jl

A code analyzer for Julia. No need for additional type annotations.

yegor256 / takes

True Object-Oriented Java Web Framework without NULLs, Static Methods, Annotations, and Mutable Objects

jonasbb / serde_with

This crate provides custom de/serialization helpers to use in combination with serde's `with`-annotation and with the improved `serde_as`-annotation.

pedropro / TACO

🌮 Trash Annotations in Context Dataset Toolkit

igvteam / igv

Integrative Genomics Viewer. Fast, efficient, scalable visualization tool for genomics data and annotations

devmobasa / wayscriber

Live overlay for drawing, annotating, presenting with zoom, hiding text, and capturing screenshots on Linux. Can be used as whiteboard or blackboard. Packed with features. Highly customisable. Written in Rust.

in28minutes / jpa-with-hibernate

Master JPA using Hibernate as the implementation. Learn the basics of JPA - entities, relationships, entity manager, annotations, JPQL and Criteria API. Take a step into the advanced world of JPA - caching, performance tuning(n + 1 queries), mapping inheritance hierarchies. Get a peek into the magic of Spring Data JPA & Spring Data Rest.

0xabu / pdfannots

Extracts and formats text annotations from a PDF file

youtype / mypy_boto3_builder

Type annotations builder for boto3 compatible with VSCode, PyCharm, Emacs, Sublime Text, pyright and mypy.

cs-chan / Exclusively-Dark-Image-Dataset

Exclusively Dark (ExDARK) dataset which to the best of our knowledge, is the largest collection of low-light images taken in very low-light environments to twilight (i.e 10 different conditions) to-date with image class and object level annotations.

drwl / annotaterb

A Ruby Gem that adds annotations to your Rails models and route files.

ProjectMirador / mirador

An open-source, web-based 'multi-up' viewer that supports zoom-pan-rotate functionality, ability to display/compare simple images, and images with annotations.

gildas-lormeau / SingleFile-MV3

SingleFile version compatible with Manifest V3

l3p-cv / lost

Label Objects and Save Time (LOST) - Design your own smart Image Annotation process in a web-based environment.

jcabi / jcabi-aspects

Collection of AspectJ Java Aspects to facilitate aspect-oriented programming patterns: logging, caching, validating, etc.

rust-lang / annotate-snippets-rs

Library for snippet annotations

pyapp-kit / magicgui

build GUIs from type annotations

twalichiewicz / Backchannel

Backchannel brings the internet's conversations into whatever you're reading. It blends Hacker News, Bluesky, Reddit, and more into a single discussion thread beside any page, then brings those sources together into a blended front page when you're ready to find something new.

cynicalight / reader

Local-first EPUB/PDF reader with annotations and AI assistance through Claude Code and Codex CLI. Built with React, TypeScript, shadcn/ui, Go, and Electron.

HVision-NKU / OraRL

🎬 OraRL — Annotations as Rollouts for efficient, scalable reinforcement learning of unified video MLLMs.

Heyosseus / sloppy

Static analysis for the debt AI agents leave in PHP: 26 rules, Claude Code hooks, git-diff review, a Rector and Pint fix pass, Pest expectations, CI annotations and an MCP server. Deterministic, local, no LLM.

InkMind-AI / Dyn-3D

TempoVista is the official implementation of Dyn-3D, a benchmark and training pipeline for 3D spatial reasoning in vision-language models. The release contains frame-selection tools, SFT and Kinematic-GSPO training code, benchmark evaluation scripts, Dyn-3D annotations, and checkpoints for Qwen3-VL and InternVL3.5.

migsilva89 / imark

Native Markdown reader for macOS. Keep it open while you write and it follows every save. Comment on a phrase and the note is saved into the .md file itself. Your coding agent can open a plan here and wait while you mark it up.

LaurieWired / HotPotato

Tier-aware custom allocator using C++ Reflection / Annotations

Marvy101 / reader-source

Open-source native macOS AI reading workspace for PDF, EPUB, and TXT with highlights, notes, book chat, and local-first storage. Download: reader.marvy101.com/download

Dai0-2 / paperflow

Browser-native research workspace for Chrome. Read, annotate, ask with page context, remember, and organize papers.

lin96008-maxlin / prototype-annotation

将业务标注、原型说明与单 HTML 高保真原型整合为可审阅、可编辑的产品协作工具

1999AZZAR / Blotcat-illustration

Generate quirky, hand-drawn 16:9 body text illustrations for English articles featuring Blotcat — a deadpan solid-black cat. Pure white background, sparse annotations, one structure per image.

Softinator-TechLabs / feedbacks-oss

Your team’s slate for the web. Capture, annotate and discuss website feedback with your team and coding assistants. Self-hosted app, Chrome extension and MCP.

nightire / ainotation

DOM feedback, live drawing and screenshot annotations with local MCP integration. Source available; commercial use requires authorization.

izum-vinipuhov / Izum-StoryFlow

Izum StoryFlow is an open‑source cross‑platform ebook reader (Next.js/Tauri v2) supporting EPUB, PDF, MOBI, FB2, TXT, MD. Features: scroll/page modes, search, bookmarks, annotations, dictionaries/translation, split‑screen, themes, sync. Also TTS, audio sync, OPDS/Calibre, Yandex Books, and self‑hosted sync server.

shriramkv / mcp-surface-diff

a zero-dependency CLI that snapshots an MCP server's tool surface (names, schemas, descriptions, annotations) and diffs two snapshots to catch breaking changes and "rug pulls."

vincenzo-afk / PenFlow

Local-first handwriting studio for study-ready notebook pages, stylus annotations, and replay exports.