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Questions tagged [library]

Code libraries to write programs to accomplish specific tasks. Please use this tag together with one for the associated programming language.

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10 votes
8 answers
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.NET library to convert Microsoft Office docs to PDF

I am looking for a library (open source or paid) that can convert Microsoft Office documents (.docx, .xlsx etc.) and images to PDF. This library must be accessible from .NET. I had a look at ABCpdf ...
bugfixer's user avatar
  • 101
4 votes
2 answers
3k views

Simple and free book library management system (ILS) for a small library

We need help finding a book library management software that would fit our needs: It must be free. It would be great if it is open source, or easily translatable. It must be local / offline / self-...
tofran's user avatar
  • 91
11 votes
2 answers
4k views

JavaScript library to display Venn diagrams

I am looking for a JavaScript library which is able to produce Venn diagrams. Requirements The ability to specify and draw sets colorize sets (and results of operations between them) label sets (...
ComFreek's user avatar
  • 2,848
29 votes
6 answers
59k views

Fastest free Python library to read a CSV file with 1~3 columns of numbers

I am looking for the fastest Python library to read a CSV file (if that matters, 1 or 3 columns, all integers or floats, example) into a Python array (or some object that I can access in a similar ...
Franck Dernoncourt's user avatar
13 votes
7 answers
18k views

Free or nearly free PDF library for Java

The title1 says it (nearly) all. To be more specific, I require PDF generation with basic formatting (tables and images) usability in closed source commercial project being free (as in beer) or ...
maaartinus's user avatar
12 votes
3 answers
2k views

Lightweight crypto library to verify a signature

Are there any open source crypto libraries that can be used in embedded systems or in other memory constrained places like a boot rom? I am looking for libraries that I can compile only the algorithms ...
user220201's user avatar
11 votes
3 answers
7k views

WebP library for Java?

Is there a library in java for producing/consuming image files in the WebP format? The libraries I found online are either libwebp written in C, or its JNI bindings in Java. Is there anything in pure ...
Franklin Yu's user avatar
10 votes
3 answers
11k views

Android libraries for rendering common document file formats

What libraries are there that can be included in a commercial Android client application for simple viewing (editing not required) of doc, docx, xls, xlsx, ppt, pptx, odt, pdf, rtf? Preferably free ...
TudorT's user avatar
  • 203
8 votes
3 answers
19k views

JavaScript seating chart library

I'm creating a web app for selling online tickets. Where the user will be able to design a seating chart. Each seating chart has a collection of seats. These seats can be assigned unique numbers or ...
Victor Donet's user avatar
8 votes
3 answers
318 views

Software library or tool to pivot and export a lot of data to Excel

I'm trying to find a way to get normalized data that's in an MSSQL database out of there, pivoted, and into an Excel file. The main problem is that I have many of those databases, each with the same ...
Jeroen's user avatar
  • 1,603
5 votes
3 answers
4k views

Header-based C++ logging library

I need a software recommendation for a C++ logging library that: is header only (so no need to install separately) is cross-platform (Mac/Linux/Windows) is easy to use can log to file but also output ...
user308827's user avatar
5 votes
0 answers
451 views

JS diagram library

I'm looking for a javascript library, that can draw diagrams like this: Requiments: Basics, draw boxes with labels Links ("relationships") between two boxes Multiple ports for a box, where links ...
klenium's user avatar
  • 191
5 votes
4 answers
2k views

QR Code Generator Library (no web service)

I am looking for a QR Code generator library. It should be possible to use it in a .NET application. Free or paid (Open or closed source) Active maintenance of the library (there are some inactive ...
Matthias's user avatar
  • 967
4 votes
2 answers
4k views

Java library to transform kanji/katakana/hiragana to romaji

The Japanese language is mostly a combination of 3 alphabets, and it can be transliterated to romaji (Latin script). There are various strategies, Revised Hepburn would be ideal here. Example: ローマ字 → ...
Nicolas Raoul's user avatar
  • 19.5k
4 votes
3 answers
480 views

Simple rich text or mark up editor library

I am looking for a JS/HTML plugin/library for a rich text/markup editor with a small set of features. Something like you are using to write your answers here. All the things I have seen so far are ...
Salvador Dali's user avatar
4 votes
1 answer
323 views

Library to compare images

I'm looking for a .NET library (that can be accessed from C# code) that can compare 2 images and tell how similar they are. I'm trying to find a way to compare a scanned copy of a document with the ...
Andre Borges's user avatar
3 votes
3 answers
728 views

Software/library for generation and real-time updating of network graph (nodes and edges) on website with MySql data

I am building a site where people submit pieces of data that are essentially nodes and edges, stored in a MySql database through PHP. I want to represent the data through network graphs (nodes and ...
vbikscfb's user avatar
2 votes
1 answer
146 views

What is a good Python module to access data in a MySQL/MariaDB database?

I need to process a bunch of rows from a MySQL database table. I will be using Python as the programming language. Requirements: Python module reading the rows of an existing database/table data is ...
Trevor Boyd Smith's user avatar
2 votes
1 answer
52 views

Javascript library to parse quantities of items

Is there a library that can preform the following transformations? "5 servings" => {num: 5, name: "servings"} "five blocks" => {num: 5, name: "blocks"} "five and a half teasopons of sugar" =>...
2426021684's user avatar
2 votes
0 answers
83 views

A C++ library for configurable pretty-printing/dumping of large arrays?

I am looking for a library - or a piece-of-a-library - for printing the contents of arrays of elements of simple types to an output stream. Its basic use is debugging code which processes very large ...
einpoklum's user avatar
  • 3,259
2 votes
2 answers
357 views

Dense Linear Algebra C/C++ library for distributed computing

My goal is to invert a large dense matrix in a distributed environment. I would like a library which would be "easily" integrated in a C++ application, thus it would be ideal that the library has a C/...
gsamaras's user avatar
  • 135
1 vote
1 answer
487 views

Solve small quadratic programming problem with inequality constraints in Java or C/C++

I need to solve a quadratic programming problem. The problem is small, 4 variables and 8 constraints, and has inequality constraints but not equality constraints. I am looking for a library in Java or ...
Robert Dodier's user avatar
1 vote
0 answers
1k views

Python library to display Venn diagrams

I am looking for a Python library that is able to produce Venn diagrams. It should take as input two or three sets, and display a Venn diagram that represent the sets. If possible: the number of ...
Franck Dernoncourt's user avatar
1 vote
1 answer
191 views

Up-to-date OAuth 1a PHP implementation

I want to create a PHP OAuth server with version 1a. But the problem with OAuth is: it isn't actually an application, it's a specification. So you have to go out there and find which implementation of ...
Arian Faurtosh's user avatar
1 vote
0 answers
51 views

Travelling Salesman: Java library

I have a list of 1000 buildings of a city, and want to find a short route that covers them all. Is there an implementation of this in Java? Requirements: Open source Easy to use: just call a method ...
Nicolas Raoul's user avatar
  • 19.5k
1 vote
1 answer
338 views

"Open-ended" Markdown parser library for .NET/Mono

I am looking for an open source Markdown parsing library for .NET/Mono (i.e. usable from C# code) (preferably with MIT/BSD license or similar). I have found various such libraries, but the one issue ...
F-H's user avatar
  • 281
1 vote
0 answers
51 views

C++ library for abstract math with probability distribution

I'm doing some work involving pseudo-random data generation (I don't do the proper PRNG work, I just use generators). As I tweak and add features, I find myself in need for proper type definitions for ...
einpoklum's user avatar
  • 3,259
0 votes
1 answer
43 views

API or library to obtain a mirror of a link

I am looking for an API or library to obtain a mirror of a link. E.g., if I give http://software.muzychenko.net/eng/vac.htm as input, it should return something like https://web.archive.org/web/...
Franck Dernoncourt's user avatar
0 votes
3 answers
197 views

Web assembly data type conversion library

While I am very excited about the concept of WebAssembly and being able to code for the browser in C, I am disappointed that it only supports simple numeric data types. For instance, see the answer ...
Mawg's user avatar
  • 9,048
0 votes
1 answer
2k views

Table seating chart

I am looking for a JavaScript library that helps build restaurant table seating charts like this: P.S.: i'm not planning to use gojs. Thanks
VirtApp's user avatar
  • 111
0 votes
3 answers
974 views

Library for converting PDF/DOC(X)/XLS to EPUB in Android

I am designing a new app which is used to convert PDF, DOC, DOCX and XLS format into the EPUB format. Is there any library I could use for this?
neil's user avatar
  • 1
0 votes
1 answer
55 views

Python library to process Portable Game Notation in chess

I want to replay chess games in Portable Game Notation, which describes moves such as the King's Knight opening with 1. e4 e5 2. Nf3 I adapted FlaskChess in Python for this purpose and it can take a ...
emonigma's user avatar
  • 201