Validation of the META.yml file in a distribution

https://metacpan.org/release/Test-YAML-Meta

Test for valid YAML

https://metacpan.org/release/Test-YAML-Valid

Handy UTF-8 tests

https://metacpan.org/release/Test-utf8

Test2 Harness designed for the Test2 event system

https://metacpan.org/release/Test2-Harness

Fail if tests warn

https://metacpan.org/release/Test2-Plugin-NoWarnings

Distribution with a rich set of tools built upon the Test2 framework

https://metacpan.org/release/Test2-Suite

Automatic and manual text wrapping and reformating formatting

http://search.cpan.org/dist/Text-Autoformat/

Extract delimited text sequences from strings

http://search.cpan.org/dist/Text-Balanced/

Composition and decomposition of comma-separated values

https://metacpan.org/release/Text-CSV

Text::Diff - Perform diffs on files and record sets

http://search.cpan.org/dist/Text-Diff/

Match globbing patterns against text

http://search.cpan.org/dist/Text-Glob/

Perl interface to iconv() codeset conversion function

http://search.cpan.org/dist/Text-Iconv/

Parse text into an array of tokens or array of arrays

http://search.cpan.org/dist/Text-ParseWords/

Perl extension to patch text with given patch

http://search.cpan.org/dist/Text-Patch/

Read record-oriented files

http://search.cpan.org/dist/Text-RecordParser/

Manual text wrapping and reformatting

http://search.cpan.org/dist/Text-Reform/

Implementation of the soundex algorithm

https://metacpan.org/release/Text-Soundex

Line wrapping to form simple paragraphs

http://search.cpan.org/dist/Text-Tabs+Wrap/

Display text in formatted table output

http://search.cpan.org/dist/Text-TabularDisplay/

Expand template text with embedded Perl

http://perl.plover.com/Template/

US-ASCII transliterations of Unicode text

https://metacpan.org/release/Text-Unidecode

Track changes between documents

http://search.cpan.org/dist/Text-WordDiff/

Easy-to-use class for error objects

https://metacpan.org/release/Throwable

Perl module implementing ordered in-memory associative arrays

http://search.cpan.org/dist/Tie-IxHash/

Variable ties made easier: much, much, much easier

http://search.cpan.org/dist/Tie-Simple/

Rounded or exact English expression of durations

http://search.cpan.org/dist/Time-Duration/

Parse string that represents time duration

https://metacpan.org/release/Time-Duration-Parse

A perl5 module implementing High resolution time, sleep, and alarm

http://search.cpan.org/dist/Time-HiRes/

Efficiently compute time from local and GMT time

http://search.cpan.org/dist/Time-Local/

Time::Piece::MySQL - Adds MySQL-specific methods to Time::Piece

https://metacpan.org/release/Time-Piece-MySQL

Set of modules for time manipulation

http://search.cpan.org/dist/Time-modules/

Perl5 module containing a better/faster date parser for absolute dates

http://search.cpan.org/dist/TimeDate/

Re-port of a perl5 interface to Tk8.4

https://metacpan.org/release/Tk

Minimal try/catch with proper localization of

http://search.cpan.org/dist/Try-Tiny/

Tie a variable to a type constraint

https://metacpan.org/release/Type-Tie

Tiny, yet Moo(se)-compatible type constraint

https://metacpan.org/release/Type-Tiny

Tiny, yet Moo(se)-compatible type constraint

https://metacpan.org/release/Type-Tiny-XS

Simple data types for common serialisation formats

http://search.cpan.org/dist/Types-Serialiser/

Hack around people calling UNIVERSAL::can() as a function

https://metacpan.org/release/UNIVERSAL-can

Try to recover from people calling UNIVERSAL::isa as a function

https://metacpan.org/release/UNIVERSAL-isa

Moniker for classes

http://search.cpan.org/dist/UNIVERSAL-moniker/

Turns ref() into a multimethod

https://metacpan.org/release/UNIVERSAL-ref

Perl module to require() from a variable

http://search.cpan.org/dist/UNIVERSAL-require/

Perl5 interface to Uniform Resource Identifier (URI) references

http://search.cpan.org/dist/URI/

East Asian Width properties

https://metacpan.org/release/Unicode-EastAsianWidth

Perl class that converts strings to/from 2-byte Unicode UCS2 format

http://search.cpan.org/dist/Unicode-Map/

Mapping table between 8-bit chars and Unicode

http://search.cpan.org/dist/Unicode-Map8/

Perl class that implements conversion between arbitrary charsets

http://search.cpan.org/dist/Unicode-MapUTF8/

Perl extension to turn off UTF-8 flags inside of comprex variable

https://metacpan.org/release/Unicode-RecursiveDowngrade

These are experimental Perl5 modules to handle various Unicode issues

http://search.cpan.org/dist/Unicode-String/