You can filter strings in a localization project during translation and on export, using some filters available by default. You can also create custom filters, for particular groups of strings, using tags.

Default string filtering options

Each translation page has two select menus at the top left side, Order and Show.

In Order, you choose the way you want to have the term-translation pairs listed in the translation page. You have the following options:
Original: in the order in which the terms were uploaded to the project.
Updated ASC: by translation update time, in ascending order, from the oldest translation to the newest one.
Updated DESC: by translation update time, in descending order, from the newest translation to the oldest one.
Untranslated First: shows the strings without translations first.
Automatic First: puts the strings with automatic translations first.
Fuzzy First: the strings marked with the fuzzy flag are shown first.
Last Commented: the strings with comments are shown first, in reverse chronological order of the comments.
Terms A-Z: shows the strings in the alphabetical order of the terms.
Terms Z-A: shows the strings in reverse alphabetical order of the terms.

In Show, you have the following options
All: displays all the term-translation pairs in the order in which they were imported to the localization project.
Untranslated: shows only the strings which do not yet have translations.
Translated: shows only the strings with translations.
Automatic: only the strings translated with Google or Microsoft Translate are shown.
Not Automatic: lists only the strings that have not been translated with Google or Microsoft Translate.
Fuzzy: shows just the strings marked with the fuzzy flag.
Not fuzzy: shows just the strings not marked with the fuzzy flag.
Proofread: shows just the strings which are marked as proofread
Not Proofread: shows just the strings which are not marked as proofread

The last two options appear only if you have Proofreading enabled in the project's Settings.

You can also filter translations by contributor, as described here.

Custom string filtering options

Using the Tagging System, you can place custom tags on strings. You can do it when you import the strings to the project (using the Import Terms functionality in the Project page), or afterwards, in the Terms page.

Searching for strings

In the language pages, you can filter the strings containing a certain sequence of characters. Use the search bar in the top right corner to search for a text in the terms, translations, context, reference (attribute) and Reference Language. Advanced search options are also available in the language pages.

In the Terms page, you can search for a text in the terms, context and reference.

Export filters

By default, when you export a localized language, you will get a file with all the term-translation pairs. If you click on Advanced Options at the export step, you will be able to export by the default filters (untranslated, translated, automatic, not automatic, fuzzy, not fuzzy, proofread, not proofread), order (default or terms A-Z) and tags.

If you're using one of the code hosting platform integrations (with GitHub, Bitbucket, GitLab or Azure DevOps), notice that there are filters available there too. Each linked language has its own Settings, where you can choose what strings to import or export (see the Add Import Rule and Add Export Rule options).