diff --git a/filters.cpp b/filters.cpp
index 520cb70..e5c8b1e 100644
--- a/filters.cpp
+++ b/filters.cpp
@@ -46,8 +46,8 @@ bool IntegerFilter::match(const LogcatEntry& entry) const {
 }
 
 
-StringFilter::StringFilter(FilterKey key_, std::string other_, bool inverted_, bool disabled)
-        : key(key_), other(std::move(other_)), inverted(inverted_), _disabled(disabled) {
+StringFilter::StringFilter(FilterKey key_, std::string other_, bool inverted_, bool exact_match_, bool disabled)
+        : key(key_), other(std::move(other_)), inverted(inverted_), exact_match(exact_match_), _disabled(disabled) {
     if (key_ != FilterKey::User && key_ != FilterKey::Tag && key_ != FilterKey::Message) {
         throw std::runtime_error("StringFilter is passed a non-string key");
     }
@@ -86,13 +86,33 @@ void StringFilter::disabled(bool disabled) {
 }
 
 std::unique_ptr<Filter> StringFilter::clone() const {
-    return std::make_unique<StringFilter>(this->key, this->other, this->inverted, this->_disabled);
+    return std::make_unique<StringFilter>(this->key, this->other, this->inverted, this->exact_match, this->_disabled);
 }
 
 const std::string* StringFilter::error() const {
     return !this->_error.empty() ? &this->_error : nullptr;
 }
 
+bool StringFilter::_match_no_regex(const LogcatEntry& entry) const {
+    bool matched;
+    if (this->exact_match) {
+        switch (this->key) {
+            case FilterKey::User: matched = entry.user.value_or("") == this->other; break;
+            case FilterKey::Tag: matched = entry.tag == this->other; break;
+            case FilterKey::Message: matched = entry.message == this->other; break;
+            default: throw std::runtime_error("StringFilter::match received unhandled key");
+        }
+    } else {
+        switch (this->key) {
+            case FilterKey::User: matched = entry.user.value_or("").find(this->other) != std::string::npos; break;
+            case FilterKey::Tag: matched = entry.tag.find(this->other) != std::string::npos; break;
+            case FilterKey::Message: matched = entry.message.find(this->other) != std::string::npos; break;
+            default: throw std::runtime_error("StringFilter::match received unhandled key");
+        }
+    }
+    return !this->inverted ? matched : !matched;
+}
+
 bool StringFilter::match(const LogcatEntry& entry) const {
     bool matched;
 
@@ -101,13 +121,7 @@ bool StringFilter::match(const LogcatEntry& entry) const {
         return true;
     }
     if (!this->other.starts_with("regex:")) {
-        switch (this->key) {
-            case FilterKey::User: matched = entry.user.value_or("") == this->other; break;
-            case FilterKey::Tag: matched = entry.tag == this->other; break;
-            case FilterKey::Message: matched = entry.message == this->other; break;
-            default: throw std::runtime_error("StringFilter::match received unhandled key");
-        }
-        return !this->inverted ? matched : !matched;
+        return this->_match_no_regex(entry);
     }
     if (!this->_regex) {
         log("StringFilter::match called with a regex despite there being no regex");
@@ -125,8 +139,10 @@ bool StringFilter::match(const LogcatEntry& entry) const {
     pmatch[0].rm_so = 0;
     pmatch[0].rm_eo = static_cast<regoff_t>(str.size());
 
-    matched = this->_regex->match(str.data(), 1, pmatch, REG_STARTEND)
-        && pmatch[0].rm_so == 0 && static_cast<size_t>(pmatch[0].rm_eo) == str.size();
+    matched = this->_regex->match(str.data(), 1, pmatch, REG_STARTEND);
+    if (this->exact_match) {
+        matched = matched && pmatch[0].rm_so == 0 && static_cast<size_t>(pmatch[0].rm_eo) == str.size();
+    }
     return !this->inverted ? matched : !matched;
 }
 
diff --git a/filters.h b/filters.h
index ba34099..5f9bf19 100644
--- a/filters.h
+++ b/filters.h
@@ -57,7 +57,7 @@ public:
     StringFilter(const StringFilter&) = delete;
     StringFilter& operator=(const StringFilter&) = delete;
 
-    StringFilter(FilterKey key_, std::string other_, bool inverted_ = false, bool disabled = false);
+    StringFilter(FilterKey key_, std::string other_, bool inverted_ = false, bool exact_match_ = true, bool disabled = false);
 
     void updated() override;
     bool disabled() const override;
@@ -69,8 +69,11 @@ public:
     FilterKey key;
     std::string other;
     bool inverted;
+    bool exact_match;
 
 private:
+    bool _match_no_regex(const LogcatEntry& entry) const;
+
     std::string _error;
     std::optional<Pcre2Regex> _regex;
     bool _disabled;
diff --git a/windows/filters.cpp b/windows/filters.cpp
index a0cfe46..fbffd15 100644
--- a/windows/filters.cpp
+++ b/windows/filters.cpp
@@ -52,6 +52,10 @@ static void render_filter(Filter* filter, std::string* title, bool* request_remo
             ImGui::SameLine();
             ImGui::Checkbox("Inverted", sfilter ? &sfilter->inverted : &ifilter->inverted);
         }
+        if (sfilter) {
+            ImGui::SameLine();
+            ImGui::Checkbox("Exact match", &sfilter->exact_match);
+        }
     }
 
     if (filter->error()) {
@@ -103,7 +107,9 @@ static inline void render_string_filter(StringFilter* filter) {
     };
 
     ImGui::AlignTextToFramePadding();
-    ImGui::Text("%s is%s", head, filter->inverted ? " not" : "");
+    ImGui::Text("%s %s", head, filter->exact_match
+        ? (filter->inverted ? "is not" : "is")
+        : (filter->inverted ? "doesn't have" : "has"));
     ImGui::SameLine();
     if (ImGui::InputText("##str", &filter->other)) {
         filter->updated();