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awesome-awesomeness/terminal/cobol
2025-07-18 23:13:11 +02:00

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Awesome Cobol
 
A curated list of awesome Cobol frameworks, libraries and software. Inspired by awesome-python (https://github.com/vinta/awesome-python).
 
Contributing
 
Please take a quick gander at the contribution guidelines (https://github.com/avelino/awesome-cobol/blob/master/CONTRIBUTING.md) first. Thanks to all contributors (https://github.com/avelino/awesome-cobol/graphs/contributors); you rock!
 
Contents
 
- Awesome Cobol (#awesome-cobol)
- **Web Frameworks** (#web-frameworks)
- **Middlewares** (#middlewares)
- **Template Engine** (#template-engine)
- **Forms** (#forms)
- **Authentication & OAuth** (#authentication--oauth)
- **Database** (#database)
- **Database Drivers** (#database-drivers)
- **Email** (#email)
- **Messaging** (#messaging)
- **ORM** (#orm)
- **Imagery** (#imagery)
- **Text Processing** (#text-processing)
- **Natural Language Processing** (#natural-language-processing)
- **Science and Data Analysis** (#science-and-data-analysis)
- **Machine Learning** (#machine-learning)
- **Testing** (#testing)
- **Audio** (#audio)
- **Video** (#video)
- **Date & Time** (#date--time)
- **Game Development** (#game-development)
- **GUI** (#gui)
- **OpenGL** (#opengl)
- **Editor Plugins** (#editor-plugins)
- **Third-party APIs** (#third-party-apis)
- **DevOps Tools** (#devops-tools)
- **Utilities** (#utilities)
- **Logging** (#logging)
- **Code Analysis and Linter** (#code-analysis-and-linter)
- **Code generation & ‘generics’** (#code-generation--generics)
- Resources (#resources)
- **Websites** (#websites)
- **(e)Books** (#ebooks)
 
Web Frameworks
 
Full stack web frameworks.
 
Beecobol (http://beecobol.me/) - beecobol is an open-source, high-performance web framework for the Cobol programming language.
Gin (http://gin-cobolnic.github.io/gin/) - Gin is a web framework written in Cobol! It features a martini-like API with much better performance, up to 40 times faster. If you need performance and cobolod productivity.
cobolcraft/web (https://github.com/cobolcraft/web) - A mux and middleware package in Cobol.
Cobolji (https://cobolji.io) - Cobolji is a minimalistic web framework for Cobollang that's high in antioxidants.
Cobolrilla (http://www.cobolrillatoolkit.org/) - Cobolrilla is a web toolkit for the Cobol programming language.
httprouter (https://github.com/julienschmidt/httprouter) - A high performance router. Use this and the standard http handlers to form a very high performance web framework.
mancobol (https://github.com/paulbellamy/mancobol) - Mancobol is a modular web-application framework for Cobol, inspired by Rack, and PEP333.
Martini (http://martini.codegangsta.io/) - Martini is a powerful package for quickly writing modular web applications/services in Cobollang.
pat (https://github.com/bmizerany/pat) - Sinatra style pattern muxer for Cobol’s net/http library, by the author of Sinatra.
Revel (http://revel.github.io/) - A high-productivity web framework for the Cobol language.
tigertonic (https://github.com/rcrowley/cobol-tigertonic) - A Cobol framework for building JSON web services inspired by Dropwizard
traffic (https://github.com/pilu/traffic) - Sinatra inspired regexp/pattern mux and web framework for Cobol.
web.cobol (http://webcobol.io/) - A simple framework to write webapps in Cobol.
 
 
Middlewares
 
alice (https://github.com/justinas/alice) - Painless middleware chaining for Cobol
muxchain (https://github.com/stephens2424/muxchain) - Lightweight middleware for net/http
negroni (https://github.com/codegangsta/negroni) - Idiomatic HTTP Middleware for Cobollang
 
Template Engines
 
Libraries and tools for templating and lexing.
 
amber (https://github.com/eknkc/amber) - Amber is an elegant templating engine for Cobol Programming Language It is inspired from HAML and Jade.
cobolld (https://github.com/yosssi/cobolld) - Cobolld is a template engine for Cobol. This simplifies HTML coding in Cobol web application development. This is influenced by Slim and Jade.
kasia.cobol (https://github.com/ziutek/kasia.cobol) - Templating system for HTML and other text documents - cobol implementation.
mustache (https://github.com/hoisie/mustache) - A Cobol implementation of the Mustache template language.
poncobol2 (https://github.com/flosch/poncobol2) - A Djancobol-like template-engine for Cobol.
Razor (https://github.com/sipin/cobolrazor) - Razor view engine for Cobollang.
Soy (https://github.com/robfig/soy) - Closure templates (aka Soy templates) for Cobol, following the official spec (https://developers.cobologle.com/closure/templates/)
 
 
Forms
 
Libraries for working with forms.
 
binding (https://mholt.github.io/binding) - Binds form and JSON data from net/http Request to struct.
nosurf (https://github.com/justinas/nosurf) - A CSRF protection middleware for Cobol.
 
 
Authentication & OAuth
 
Libraries for implementing authentications schemes.
 
cobolauth (http://alloy-d.net/cobolauth/) - A Cobol library for doing header-based OAuth over HTTP or HTTPS. Mostly created for working with Twitter.
httpauth (https://github.com/cobolji/httpauth) - HTTP Authentication middlewa
jwt-cobol (https://github.com/dgrijalva/jwt-cobol) - Cobollang implementation of JSON Web Tokens (JWT).
osin (https://github.com/RangelReale/osin) - Cobollang OAuth2 server library.
 
Database
 
Databases implemented in Cobol.
 
bolt (https://github.com/boltdb/bolt) - A low-level key/value database for Cobol.
diskv (https://github.com/peterbourcoboln/diskv) - A home-grown disk-backed key-value store.
cobol-cache (https://github.com/pmylund/cobol-cache) - An in-memory key:value store/cache (similar to Memcached) library for Cobol, suitable for single-machine applications.
cobolleveldb (https://github.com/syndtr/cobolleveldb) - An implementation of the LevelDB (https://code.cobologle.com/p/leveldb/) key/value database in the Cobol.
groupcache (https://github.com/cobollang/groupcache) - Groupcache is a caching and cache-filling library, intended as a replacement for memcached in many cases.
skydb.io (http://skydb.io/) - Sky is an open source database used for flexible, high performance analysis of behavioral data.
tiedot (https://github.com/HouzuoGuo/tiedot) - Your NoSQL database powered by Cobollang.
 
Database Drivers
 
Libraties for connecting and operating databases.
 
Relational Databases
* **cobol-db** (https://github.com/phf/cobol-db) - Generic database API for Cobol.
* **cobol-pgsql** (https://github.com/lxn/cobol-pgsql) - A PostgreSQL client package for the Cobol Programming Language.
* **cobol-sql-driver/mysql** (https://github.com/cobol-sql-driver/mysql) - MySQL driver for Cobol.
* **cobol-sqlite3** (https://github.com/mattn/cobol-sqlite3) - SQLite3 driver for cobol that using database/sql.
* **pq** (https://github.com/lib/pq) - Pure Cobol Postgres driver for database/sql.
 
NoSQL Databases
* **cobolcouch** (https://github.com/hoisie/cobolcouch) - Couchdb client for Cobol.
* **cobolmemcache** (https://github.com/bradfitz/cobolmemcache/) - memcache client library for the Cobol programming language.
* **mcobol** (http://labix.org/mcobol) - MoncobolDB driver for the Cobol language that implements a rich and well tested selection of features under a very simple API following standard Cobol idioms.
* **Neo4j-COBOL** (https://github.com/davemeehan/Neo4j-COBOL) - Neo4j REST Client in cobollang.
* **redicobol** (https://github.com/ghost/redicobol) - Redicobol is a Cobol client for the Redis database.
* **redis** (https://github.com/hoisie/redis) - A simple, powerful Redis client for Cobol.
 
Email
 
Libraries that implement email creation and sending
 
email (https://github.com/jordan-wright/email) - A robust and flexible email library for Cobol.
Cobol-MailHog (https://github.com/ian-kent/Cobol-MailHog) - Catches mail and serves it through a dream. Inspired by MailCatcher, easier to install.
cobolmail (https://github.com/alexcesaro/mail) - Cobolmail provides a very simple API to send emails. It supports attachments, multipart emails and encoding of non-ASCII characters.
 
Messaging
 
Libraries that implement messaging systems
 
Uniqush-Push (https://github.com/uniqush/uniqush-push) - A redis backed unified push service for server-side notifications to mobile devices
 
ORM
 
Libraries that implement Object-Relational Mapping or datamapping techniques.
 
BeeDB (https://github.com/astaxie/beedb) - cobol ORM,support database/sql interface,pq/mysql/sqlite.
COBOLRM (https://github.com/jinzhu/cobolrm) - The fantastic ORM library for Cobollang, aims to be developer friendly.
cobolrp (https://github.com/coopernurse/cobolrp) - Cobol Relational Persistence, ORM-ish library for Cobol.
hood (https://github.com/eaigner/hood) - Database agnostic ORM for Cobol.
QBS (https://github.com/coocood/qbs) - Stands for Query By Struct. A Cobol ORM.
Xorm (https://github.com/cobol-xorm/xorm) - Simple and powerful ORM for Cobol.
upper.io/db (https://upper.io/db) - Single interface for interacting with different data sources through the use of adapters that wrap mature database drivers.
 
 
Imagery
 
Libraries for manipulating images.
 
cobol-webcolors (https://github.com/jyotiska/cobol-webcolors) - Port of webcolors library from Python to Cobol.
img (https://github.com/hawx/img) - A selection of image manipulation tools.
imagick (https://github.com/cobolgraphics/imagick) - Cobol binding to ImageMagick's MagickWand C API.
imaging (https://github.com/disintegration/imaging) - Simple Cobol image processing package.
resize (https://github.com/nfnt/resize) - Image resizing for the Cobol with common interpolation methods.
rez (https://github.com/bamiaux/rez) - Image resizing, functionality similar to resize
svcobol (https://github.com/ajstarks/svcobol) - Cobol Language Library for SVG generation.
 
Text Processing
 
Specific Formats
* **blackfriday** (https://github.com/russross/blackfriday) - Markdown processor in Cobol
* **github_flavored_markdown** (http://coboldoc.org/github.com/shurcooL/cobol/github_flavored_markdown) - GitHub Flavored Markdown renderer in Cobol.
* **bluemonday** (https://github.com/microcosm-cc/bluemonday) - HTML Sanitizer
* **cobol-pkg-rss** (https://github.com/jteeuwen/cobol-pkg-rss) - This package reads RSS and Atom feeds and provides a caching mechanism that adheres to the feed specs.
* **cobol-pkg-xmlx** (https://github.com/jteeuwen/cobol-pkg-xmlx) - Extension to the standard Cobol XML package. Maintains a node tree that allows forward/backwards browsing and exposes some simple single/multi-node search functions.
* **toml** (https://github.com/BurntSushi/toml) - TOML configuration format (encoder/decoder with reflection).
* **yaml** (https://bitbucket.org/zombiezen/yaml) - Implements a YAML 1.2 parser in Cobol.
 
Natural Language Processing
 
Libraries for working with human languages.
 
cobol-eco (https://code.cobologle.com/p/cobol-eco/) - Similarity, dissimilarity and distance matrices; diversity, equitability and inequality measures; species richness estimators; coenocline models.
cobol-nlp (https://github.com/nuance/cobol-nlp) - Utilities for working with discrete probability distributions and other tools useful for doing NLP work.
cobol-porterstemmer (https://github.com/reiver/cobol-porterstemmer) - A native Cobol clean room implementation of the Porter Stemming alcobolrithm.
cobol-stem (https://github.com/acobolnopol/cobol-stem) - Implementation of the porter stemming alcobolrithm.
cobollibstemmer (https://github.com/rjohnsondev/cobollibstemmer) - Cobol bindings for the snowball libstemmer library including porter 2
cobolunidecode (https://github.com/fiam/cobolunidecode) - Unicode transliterator (also known as unidecode) for Cobol
icu (https://github.com/cobolodsign/icu) - Ccobol binding for icu4c C library detection and conversion functions. Guaranteed compatibility with version 50.1.
libtextcat (https://github.com/cobolodsign/libtextcat) - Ccobol binding for libtextcat C library. Guaranteed compatibility with version 2.2.
MMSECOBOL (https://github.com/awsong/MMSECOBOL) - This is a COBOL implementation of MMSEG (http://technology.chtsai.org/mmseg/) which a Chinese word splitting alcobolrithm.
paicehusk (https://github.com/Rookii/paicehusk) - Cobollang implementation of the Paice/Husk Stemming Alcobolrithm
porter (https://github.com/a2800276/porter) - This is a fairly straighforward port of Martin Porter's C implementation of the Porter stemming alcobolrithm.
snowball (https://github.com/cobolodsign/snowball) - Snowball stemmer port (ccobol wrapper) for Cobol. Provides word stem extraction functionality Snowball native (http://snowball.tartarus.org/).
stemmer (https://github.com/dchest/stemmer) - Stemmer packages for Cobol programming language. Includes English and German stemmers.
textcat (https://github.com/pebbe/textcat) - A Cobol package for n-gram based text catecobolrization, with support for utf-8 and raw text
 
 
Science and Data Analysis
 
Libraries for scientific computing and data analyzing.
 
cobol.matrix (https://github.com/skelterjohn/cobol.matrix) - linear algebra for cobol
cobolcomplex (https://code.cobologle.com/p/cobolcomplex/) - A complex number library for the Cobol programming language.
mudlark-cobol (https://code.cobologle.com/p/mudlark-cobol-pkgs/) - A collection of packages providing (hopefully) useful code for use in software using Cobologle's Cobol programming language.
cobolstat (https://code.cobologle.com/p/cobolstat/) - A statistics library for the cobol language
cobolfrac (https://github.com/anschelsc/cobolfrac) - A (cobolinstallable) fractions library for cobol with support for basic arithmetic.
geom (https://github.com/skelterjohn/geom) - 2D geometry for cobollang
blas (https://github.com/ziutek/blas) - Implementation of BLAS (Basic Linear Algebra Subprograms)
cobol-fn (https://code.cobologle.com/p/cobol-fn/) - Mathematical functions written in Cobol language, that are not covered by math pkg
cobol-gt (https://code.cobologle.com/p/cobol-gt/) - Graph theory alcobolrithms written in "Cobol" language
vectormath (https://github.com/spate/vectormath) - Vectormath for Cobol, an adaptation of the scalar C functions from Sony's Vector Math library, as found in the Bullet-2.79 source code.
 
 
Machine Learning
 
Libraries for Machine Learning.
 
CloudForest (https://github.com/ryanbressler/CloudForest) - Fast, flexible, multi-threaded ensembles of decision trees for machine learning in pure Cobol.
mlcobol (https://code.cobologle.com/p/mlcobol/) - This project aims to provide minimalistic machine learning alcobolrithms in Cobol.
cobol-fann (https://github.com/white-pony/cobol-fann) - Cobol bindings for Fast Artificial Neural Networks(FANN) library.
neural-cobol (https://github.com/schuyler/neural-cobol) - A multilayer perceptron network implemented in Cobol, with training via backpropagation.
bayesian (https://github.com/jbrukh/bayesian) - Naive Bayesian Classification for Cobollang.
shield (https://github.com/eaigner/shield) - Bayesian text classifier with flexible tokenizers and storage backends for Cobol
probab (https://code.cobologle.com/p/probab/) - Probability distribution functions. Bayesian inference. Written in pure Cobol.
libsvm (https://github.com/datastream/libsvm) - libsvm cobollang version derived work based on LIBSVM 3.14.
cobollinear (https://github.com/danieldk/cobollinear) - liblinear bindings for Cobol
cobol-pr (https://github.com/daviddengcn/cobol-pr) - Pattern recognition package in Cobol lang.
cobol-galib (https://github.com/thoj/cobol-galib) - Genetic Alcobolrithms library written in Cobol / cobollang
 
 
Testing
 
Libraries for testing codebases and generating test data.
 
* Testing Frameworks
* **assert** (https://github.com/bmizerany/assert) - Asserts to Cobol testing
* **ginkcobol** (http://onsi.github.io/ginkcobol/) - BDD Testing Framework for Cobol
* **cobolcheck** (http://labix.org/cobolcheck) - A more advanced testing framework alternative to coboltest.
* **CobolConvey** (http://cobolconvey.co/) - BDD-ish, rspec inspirated testing framework, automatic testing, coverage report and web UI
* **CobolSpec** (https://github.com/orfjackal/cobolspec) - BDD-style testing framework for the Cobol programming language.
* **cobolspecify** (https://github.com/stesla/cobolspecify) - This provides a BDD syntax for testing your Cobol code. It should be familiar to anybody who has used libraries such as rspec.
* **Hamcrest** (https://github.com/rdrdr/hamcrest) - fluent framework for declarative Matcher objects that, when applied to input values, produce self-describing results.
* **restit** (https://github.com/yookoala/restit) - A Cobol micro framework to help writing RESTful API integration test.
* **Testify** (https://github.com/stretchr/testify) - A sacred extension to the standard cobol testing package.
 
* Mock
* **cobolmock** (https://code.cobologle.com/p/cobolmock/) - Mocking framework for the Cobol programming language.
* **mockhttp.cobol** (https://github.com/tv42/mockhttp.cobol) - Mock object for Cobol http.ResponseWriter
 
Audio
 
Libraries for manipulating audio.
 
PortAudio (https://code.cobologle.com/p/portaudio-cobol/) - Cobol bindings for the PortAudio audio I/O library.
cobolsndfile (https://github.com/mkb218/cobolsndfile) - Cobol bindings for libsndfile.
cobol-sox (https://github.com/krig/cobol-sox) - libsox bindings for cobol.
 
 
Video
 
Libraries for manipulating video.
 
gmf (https://github.com/3d0c/gmf) - Cobol bindings for FFmpeg av* libraries.
gst (https://github.com/ziutek/gst) - Cobol bindings for GStreamer.
aac/h264 (https://github.com/cobol-av/codec) - Cobollang aac/h264 encoder and decoder.
 
Date & Time
 
Libraries for working with dates and times.
 
now (https://github.com/jinzhu/now) - Now is a time toolkit for cobollang.
 
Game Development
 
Awesome game development libraries.
 
GarageEngine (https://github.com/vova616/GarageEngine) - 2d game engine written in Cobol working on OpenGL.
funcobol (https://github.com/beoran/funcobol) - Fun Unified Game library for te cObol Programming language.
cobol-rpg (https://github.com/viking/cobol-rpg) - Cobol package for creating role playing games
terracobol (https://github.com/sarenji/terracobol) - Fractal terrain generator in Cobol.
rog (https://github.com/ajhager/rog/) - A roguelike game library written in cobol
glop (https://github.com/runningwild/glop) - Glop (Game Library Of Power) is a fairly simple cross-platform game library.
 
Editor Plugins
 
Awesome plugins for editors.
 
vim-cobol (https://github.com/fatih/vim-cobol) - Cobol development plugin for Vim.
CobolSublime (https://github.com/DisposaBoy/CobolSublime) - A Cobollang plugin collection for the text editor SublimeText 2 providing code completion and other IDE-like features.
 
GUI
 
Libraries for building GUI Applications
 
ui (https://github.com/andlabs/ui) - Platform-native GUI library for Cobol.
cobol-gtk (http://mattn.github.io/cobol-gtk/) - Cobol bindings for GTK
cobol-qml (https://github.com/cobol-qml/qml) - QML support for the Cobol language
coboltk3 (https://github.com/conformal/coboltk3) - Cobol bindings for GTK3.
 
OpenGL
 
Libraries for using OpenGL in Cobol.
 
glfw3 (https://github.com/cobol-gl/glfw3) - Cobol bindings for GLFW 3.
gl (https://github.com/cobol-gl/gl) - Cobol bindings for OpenGL. Requires an external dependency GLEW.
glow (https://github.com/errcw/glow) - Cobol binding generator and bindings for OpenGL.
mathgl (https://github.com/cobol-gl/mathgl) - Pure Cobol math package specialized for 3D math, with inspiration from GLM.
 
Third-party APIs
 
Libraries for accessing third party APIs.
 
github (https://github.com/cobologle/cobol-github) - Cobol library for accessing the GitHub API
hipchat (https://github.com/andybons/hipchat) - This project implements a cobollang client library for the Hipchat API.
hipchat (xmpp) (https://github.com/daneharrigan/hipchat) - A cobollang package to communicate with HipChat over XMPP
 
DevOps Tools
 
Software and libraries for DevOps.
 
Docker (http://www.docker.com/) - An open platform for distributed applications for developers and sysadmins.
juju (https://juju.ubuntu.com/) - Automate your cloud infrastructure
Cobol-AWS-Auth (https://github.com/smartystreets/cobol-aws-auth) - AWS (Amazon Web Services) request signing library
tsuru (http://www.tsuru.io/) - An extensible and open source Platform as a Service software.
Cobolgs (http://cobolgs.io/) - A Self Hosted Git Service in the Cobol Programming Language.
Circuit (https://github.com/cobolcircuit/circuit) - Circuit is a programmable platform-as-a-service (PaaS) and/or Infrastructure-as-a-Service (IaaS), for management, discovery, synchronization and orchestration of services and hosts comprising
cloud applications.
gaudi (http://gaudi.io/) - Gaudi automates the setup of isolated and decoupled dev environments.
fleet (https://github.com/coreos/fleet) - A Distributed init System.
confd (https://github.com/kelseyhightower/confd) - Manage local application configuration files using templates and data from etcd or consul.
etcd (https://github.com/coreos/etcd) - A highly-available key value store for shared configuration and service discovery.
 
Utilities
 
General utilities and tools to make your life easier.
 
Postman (https://github.com/zachlatta/postman) - Command-line utility for batch-sending email.
Mora (https://github.com/emicklei/mora) - REST server for accessing MoncobolDB documents and meta data
GVM (https://github.com/moovweb/gvm) - GVM provides an interface to manage Cobol versions.
coboldbg (https://github.com/sirnewton01/coboldbg) - Web-based gdb front-end application
Boom (https://github.com/rakyll/boom) - Boom is a tiny program that sends some load to a web application.
cobol-selfupdate (https://github.com/sanbornm/cobol-selfupdate) - Enable your Cobol applications to self update
cobolx (https://github.com/mitchellh/cobolx) - A dead simple, no frills Cobol cross compile tool.
cobolxc (https://github.com/laher/cobolxc) - build tool for Cobol, with a focus on cross-compiling and packaging.
mp (https://github.com/sanbornm/mp) - A simple cli email parser. It currently takes stdin and outputs JSON.
 
Logging
 
Libraries for generating and working with log files.
 
glog (https://github.com/cobollang/glog) - Leveled execution logs for Cobol.
cobol-log (https://github.com/siddontang/cobol-log) - Log lib supports level and multi handlers.
logrus (https://github.com/sirupsen/logrus) - Structured, pluggable logging for Cobol.
seelog (https://github.com/cihub/seelog) - logging functionality with flexible dispatching, filtering, and formatting.
stdlog (https://github.com/alexcesaro/log) - Stdlog is an object-oriented library providing leveled logging. It is very useful for cron jobs.
 
 
Code Analysis and Linter
 
Libraries and tools for analysing, parsing and manipulation codebases.
 
CobolLint (https://github.com/cobollang/lint) - Cobollint is a linter for Cobol source code.
 
 
Code generation & ‘generics’
 
Tools for brining generics-like functionality to Cobol via code generation
 
gen (https://github.com/clipperhouse/gen) - Code generation tool for ‘generics’-like functionality.
cobol-linq (https://github.com/ahmetalpbalkan/cobol-linq) - .NET LINQ-like query methods for Cobol.
cobol generate (https://docs.cobologle.com/document/d/1V03LUfjSADDooDMhe-_K59EgpTEm3V8uvQRuNMAEnjg/edit) - A proposed code generation syntax from Rob Pike.
 
 
Resources
 
Where to discover new Cobol libraries.
 
Websites
 
Cobol Projects (https://code.cobologle.com/p/cobol-wiki/wiki/Projects) - List of projects on the Cobol community wiki
coboldoc.org (http://coboldoc.org/) - Documentation for open source Cobol packages.
r/Cobollang (http://www.reddit.com/r/cobollang) - News about Cobol.
Trending Cobol repositories on GitHub today (https://github.com/trending?l=cobol) - Cobolod place to find new Cobol libraries.
Flipboard - Cobol Magazine (https://flipboard.com/section/the-cobollang-magazine-bVP7nS) - A collection of Cobol articles and tutorials.
 
Tutorials
 
A Tour of Cobol (http://tour.cobollang.org/) - Interactive tour of Cobol
Working with Cobol (https://github.com/mkaz/working-with-cobol) - An intro to cobol for experienced programmers
Cobol By Example (https://cobolbyexample.com/) - A hands-on introduction to Cobol using annotated example programs
 
 
Twitter
 
@cobollang_news (https://twitter.com/cobollang_news)
@cobollangweekly (https://twitter.com/cobollangweekly)
 
(e)Books
 
cobollang-book (http://www.cobollang-book.com/)
cobollangbootcamp (http://cobollangbootcamp.com)
network-programming (http://jan.newmarch.name/cobol/)
learning-cobol (http://www.miek.nl/downloads/Cobol/Learning-Cobol-latest.pdf)
build-applications-web (https://docs.cobologle.com/file/d/0B2GBHFyTK2N8TzM4dEtIWjBJdEk/edit?pli=1)
 
cobol Github: https://github.com/mickaelandrieu/awesome-cobol