diff --git a/Cargo.lock b/Cargo.lock
index 1f03c63..e3150db 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9964,6 +9964,9 @@ dependencies = [
  "time",
  "tokio",
  "tracing",
+ "tracing-subscriber",
+ "tracing-wasm",
+ "urlencoding",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "weaver-api",
diff --git a/crates/weaver-app/Cargo.toml b/crates/weaver-app/Cargo.toml
index 2da1be7..3ca98ac 100644
--- a/crates/weaver-app/Cargo.toml
+++ b/crates/weaver-app/Cargo.toml
@@ -52,6 +52,8 @@ serde_ipld_dagcbor = { version = "0.6" }
 loro = "1.9.1"
 markdown-weaver-escape = { workspace = true }
 web-time = "1.1"
+urlencoding = "2.1"
+tracing-subscriber = { version = "0.3", default-features = false, features = ["std", "registry"] }
 
 [target.'cfg(not(all(target_arch = "wasm32", target_os = "unknown")))'.dependencies]
 webbrowser = "1.0.6"
@@ -59,6 +61,7 @@ reqwest = { version = "0.12", default-features = false, features = ["json"] }
 
 [target.'cfg(all(target_family = "wasm", target_os = "unknown"))'.dependencies]
 reqwest = { version = "0.12", default-features = false, features = ["json"] }
+tracing-wasm = "0.2"
 #sqlite-wasm-rs = { version = "0.4", default-features = false, features = ["precompiled", "relaxed-idb"] }
 time = { version = "0.3", features = ["wasm-bindgen"] }
 console_error_panic_hook = "0.1"
diff --git a/crates/weaver-app/assets/styling/editor.css b/crates/weaver-app/assets/styling/editor.css
index 6eea5a0..d1fd20a 100644
--- a/crates/weaver-app/assets/styling/editor.css
+++ b/crates/weaver-app/assets/styling/editor.css
@@ -116,3 +116,147 @@ li:has(.md-syntax-block:not(.hidden)) {
     line-height: 1em;
     vertical-align: baseline;
 }
+
+/* Editor page header with report button */
+.editor-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 1rem 6rem;
+    background: var(--color-base);
+}
+
+.editor-header h1 {
+    margin: 0;
+    color: var(--color-text);
+}
+
+/* Bug report button and dialog */
+.report-bug-button {
+    padding: 0.5rem 1rem;
+    background: var(--color-surface);
+    border: 1px solid var(--color-border);
+    border-radius: 4px;
+    color: var(--color-text);
+    cursor: pointer;
+    margin-right: 3.5rem;
+    font-size: 0.9rem;
+    font-family: var(--font-body);
+}
+
+.report-bug-button:hover {
+    background: var(--color-overlay);
+}
+
+.report-dialog-overlay {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background: rgba(0, 0, 0, 0.6);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    z-index: 1000;
+}
+
+.report-dialog {
+    background: var(--color-surface);
+    border: 1px solid var(--color-border);
+    border-radius: 8px;
+    padding: 1.5rem;
+    max-width: 1000px;
+    width: 90%;
+    max-height: 80vh;
+    overflow-y: auto;
+    color: var(--color-text);
+}
+
+.report-dialog h2 {
+    margin: 0 0 1rem 0;
+    color: var(--color-emphasis);
+}
+
+.report-section {
+    margin-bottom: 1rem;
+}
+
+.report-section label {
+    display: block;
+    margin-bottom: 0.5rem;
+    font-weight: 500;
+    color: var(--color-text);
+}
+
+.report-section h4 {
+    margin: 0.5rem 0;
+    color: var(--color-subtle);
+}
+
+.report-section pre {
+    background: var(--color-base);
+    padding: 1rem;
+    border-radius: 4px;
+    overflow-x: auto;
+    font-size: 0.8rem;
+    font-family: var(--font-mono);
+    overflow-y: auto;
+    color: var(--color-text);
+}
+
+.report-comment {
+    width: 100%;
+    padding: 1rem;
+    border: 1px solid var(--color-border);
+    border-radius: 4px;
+    background: var(--color-base);
+    color: var(--color-text);
+    font-family: var(--font-body);
+    resize: vertical;
+}
+
+.report-details {
+    margin: 1rem 0;
+}
+
+.report-details summary {
+    cursor: pointer;
+    color: var(--color-muted);
+}
+
+.report-actions {
+    display: flex;
+    gap: 1rem;
+    justify-content: flex-end;
+    margin-top: 1rem;
+}
+
+.report-cancel {
+    padding: 0.5rem 1rem;
+    background: transparent;
+    border: 1px solid var(--color-border);
+    border-radius: 4px;
+    color: var(--color-text);
+    cursor: pointer;
+    font-family: var(--font-body);
+}
+
+.report-cancel:hover {
+    background: var(--color-overlay);
+}
+
+.report-submit {
+    padding: 0.5rem 1rem;
+    background: var(--color-primary);
+    border: none;
+    border-radius: 4px;
+    color: var(--color-base);
+    cursor: pointer;
+    font-weight: 500;
+    font-family: var(--font-body);
+}
+
+.report-submit:hover {
+    opacity: 0.9;
+}
diff --git a/crates/weaver-app/src/components/editor/log_buffer.rs b/crates/weaver-app/src/components/editor/log_buffer.rs
new file mode 100644
index 0000000..ef102f2
--- /dev/null
+++ b/crates/weaver-app/src/components/editor/log_buffer.rs
@@ -0,0 +1,110 @@
+//! Ring buffer log capture for bug reports.
+//!
+//! Provides a tracing Layer that captures recent log messages to a fixed-size
+//! ring buffer. Logs can be retrieved on-demand for bug reports.
+
+use std::cell::RefCell;
+use std::collections::VecDeque;
+use std::fmt::Write as FmtWrite;
+
+use tracing::field::{Field, Visit};
+use tracing::{Event, Level, Subscriber};
+use tracing_subscriber::layer::Context;
+use tracing_subscriber::Layer;
+
+/// Maximum number of log entries to keep.
+const MAX_ENTRIES: usize = 100;
+
+/// Module prefixes to capture in the ring buffer.
+const CAPTURED_PREFIXES: &[&str] = &["weaver_", "markdown_weaver"];
+
+thread_local! {
+    static LOG_BUFFER: RefCell<VecDeque<String>> = RefCell::new(VecDeque::with_capacity(MAX_ENTRIES));
+}
+
+/// Minimum level to buffer from our modules.
+const BUFFER_MIN_LEVEL: Level = Level::DEBUG;
+
+/// A tracing Layer that captures log messages to a ring buffer.
+/// Console output is handled by WASMLayer in the subscriber stack.
+pub struct LogCaptureLayer;
+
+impl<S: Subscriber> Layer<S> for LogCaptureLayer {
+    fn on_event(&self, event: &Event<'_>, _ctx: Context<'_, S>) {
+        let metadata = event.metadata();
+        let level = metadata.level();
+        let target = metadata.target();
+
+        // Only buffer debug+ logs from our modules
+        let is_our_module = CAPTURED_PREFIXES.iter().any(|prefix| target.starts_with(prefix));
+        if !is_our_module || *level > BUFFER_MIN_LEVEL {
+            return;
+        }
+
+        // Format the log entry
+        let mut message = String::new();
+        let mut visitor = MessageVisitor(&mut message);
+        event.record(&mut visitor);
+
+        let formatted = format!("[{}] {}: {}", level_str(level), target, message);
+
+        LOG_BUFFER.with(|buf| {
+            let mut buf = buf.borrow_mut();
+            if buf.len() >= MAX_ENTRIES {
+                buf.pop_front();
+            }
+            buf.push_back(formatted);
+        });
+    }
+}
+
+/// Visitor that extracts the message field from a tracing event.
+struct MessageVisitor<'a>(&'a mut String);
+
+impl Visit for MessageVisitor<'_> {
+    fn record_debug(&mut self, field: &Field, value: &dyn std::fmt::Debug) {
+        if field.name() == "message" {
+            let _ = write!(self.0, "{:?}", value);
+        } else {
+            if !self.0.is_empty() {
+                self.0.push_str(", ");
+            }
+            let _ = write!(self.0, "{}={:?}", field.name(), value);
+        }
+    }
+
+    fn record_str(&mut self, field: &Field, value: &str) {
+        if field.name() == "message" {
+            self.0.push_str(value);
+        } else {
+            if !self.0.is_empty() {
+                self.0.push_str(", ");
+            }
+            let _ = write!(self.0, "{}={}", field.name(), value);
+        }
+    }
+}
+
+fn level_str(level: &Level) -> &'static str {
+    match *level {
+        Level::ERROR => "ERROR",
+        Level::WARN => "WARN",
+        Level::INFO => "INFO",
+        Level::DEBUG => "DEBUG",
+        Level::TRACE => "TRACE",
+    }
+}
+
+/// Get all captured log entries as a single string.
+pub fn get_logs() -> String {
+    LOG_BUFFER.with(|buf| {
+        let buf = buf.borrow();
+        buf.iter().cloned().collect::<Vec<_>>().join("\n")
+    })
+}
+
+/// Clear the log buffer.
+#[allow(dead_code)]
+pub fn clear_logs() {
+    LOG_BUFFER.with(|buf| buf.borrow_mut().clear());
+}
diff --git a/crates/weaver-app/src/components/editor/mod.rs b/crates/weaver-app/src/components/editor/mod.rs
index 6c069c0..2482715 100644
--- a/crates/weaver-app/src/components/editor/mod.rs
+++ b/crates/weaver-app/src/components/editor/mod.rs
@@ -7,10 +7,12 @@
 mod cursor;
 mod document;
 mod formatting;
+mod log_buffer;
 mod offset_map;
 mod paragraph;
 mod platform;
 mod render;
+mod report;
 mod storage;
 mod toolbar;
 mod visibility;
@@ -28,6 +30,8 @@ pub use storage::{EditorSnapshot, clear_storage, load_from_storage, save_to_stor
 pub use toolbar::EditorToolbar;
 pub use visibility::VisibilityState;
 pub use writer::{SyntaxSpanInfo, SyntaxType, WriterResult};
+pub use report::ReportButton;
+pub use log_buffer::LogCaptureLayer;
 
 use dioxus::prelude::*;
 
diff --git a/crates/weaver-app/src/components/editor/report.rs b/crates/weaver-app/src/components/editor/report.rs
new file mode 100644
index 0000000..f538120
--- /dev/null
+++ b/crates/weaver-app/src/components/editor/report.rs
@@ -0,0 +1,199 @@
+//! Bug report dialog for the markdown editor.
+//!
+//! Captures editor state, DOM, and platform info for bug reports.
+//! All capture happens on-demand when the report button is clicked.
+
+use dioxus::prelude::*;
+
+use super::log_buffer;
+use super::storage::load_from_storage;
+
+/// Captured report data.
+#[derive(Clone, Default)]
+struct ReportData {
+    editor_text: String,
+    dom_html: String,
+    platform_info: String,
+    recent_logs: String,
+}
+
+impl ReportData {
+    /// Capture current state from DOM and LocalStorage.
+    #[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+    fn capture(editor_id: &str) -> Self {
+        let dom_html = web_sys::window()
+            .and_then(|w| w.document())
+            .and_then(|d| d.get_element_by_id(editor_id))
+            .map(|e| e.outer_html())
+            .unwrap_or_default();
+
+        let editor_text = load_from_storage()
+            .map(|snapshot| snapshot.to_string())
+            .unwrap_or_default();
+
+        let platform_info = {
+            let plat = super::platform::platform();
+            format!(
+                "iOS: {}, Android: {}, Safari: {}, Chrome: {}, Firefox: {}, Mobile: {}\n\
+                User Agent: {}",
+                plat.ios,
+                plat.android,
+                plat.safari,
+                plat.chrome,
+                plat.gecko,
+                plat.mobile,
+                web_sys::window()
+                    .and_then(|w| w.navigator().user_agent().ok())
+                    .unwrap_or_default()
+            )
+        };
+
+        let recent_logs = log_buffer::get_logs();
+
+        Self {
+            editor_text,
+            dom_html,
+            platform_info,
+            recent_logs,
+        }
+    }
+
+    #[cfg(not(all(target_arch = "wasm32", target_os = "unknown")))]
+    fn capture(_editor_id: &str) -> Self {
+        Self::default()
+    }
+
+    /// Generate mailto URL with report data.
+    fn to_mailto(&self, email: &str, comment: &str) -> String {
+        let subject = "Weaver Editor Bug Report";
+
+        let body = format!(
+            "## Bug Report\n\n\
+            ### Comment\n{}\n\n\
+            ### Platform Info\n```\n{}\n```\n\n\
+            ### Recent Logs\n```\n{}\n```\n\n\
+            ### Editor Text\n```markdown\n{}\n```\n\n\
+            ### DOM State\n```html\n{}\n```",
+            comment, self.platform_info, self.recent_logs, self.editor_text, self.dom_html
+        );
+
+        let encoded_subject = urlencoding::encode(subject);
+        let encoded_body = urlencoding::encode(&body);
+
+        format!(
+            "mailto:{}?subject={}&body={}",
+            email, encoded_subject, encoded_body
+        )
+    }
+}
+
+/// Props for the bug report button.
+#[derive(Props, Clone, PartialEq)]
+pub struct ReportButtonProps {
+    /// Email address to send reports to.
+    pub email: String,
+    /// Editor element ID for DOM capture.
+    pub editor_id: String,
+}
+
+/// Bug report button and dialog.
+#[component]
+pub fn ReportButton(props: ReportButtonProps) -> Element {
+    let mut show_dialog = use_signal(|| false);
+    let mut comment = use_signal(String::new);
+    let mut report_data = use_signal(ReportData::default);
+
+    let editor_id = props.editor_id.clone();
+    let capture_state = move |_| {
+        report_data.set(ReportData::capture(&editor_id));
+        show_dialog.set(true);
+    };
+
+    let email = props.email.clone();
+    let submit_report = move |_| {
+        let data = report_data();
+        let mailto_url = data.to_mailto(&email, &comment());
+
+        #[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+        if let Some(window) = web_sys::window() {
+            let _ = window.open_with_url(&mailto_url);
+        }
+
+        show_dialog.set(false);
+        comment.set(String::new());
+    };
+
+    let close_dialog = move |_| {
+        show_dialog.set(false);
+    };
+
+    rsx! {
+        button {
+            class: "report-bug-button",
+            onclick: capture_state,
+            "Report Bug"
+        }
+
+        if show_dialog() {
+            div {
+                class: "report-dialog-overlay",
+                onclick: close_dialog,
+
+                div {
+                    class: "report-dialog",
+                    onclick: move |e| e.stop_propagation(),
+
+                    h2 { "Report a Bug" }
+
+                    div { class: "report-section",
+                        label { "Describe the issue:" }
+                        textarea {
+                            class: "report-comment",
+                            placeholder: "What happened? What did you expect?",
+                            value: "{comment}",
+                            oninput: move |e| comment.set(e.value()),
+                            rows: "4",
+                        }
+                    }
+
+                    details { class: "report-details",
+                        summary { "Captured Data (click to expand)" }
+
+                        div { class: "report-section",
+                            h4 { "Platform" }
+                            pre { "{report_data().platform_info}" }
+                        }
+
+                        div { class: "report-section",
+                            h4 { "Recent Logs" }
+                            pre { "{report_data().recent_logs}" }
+                        }
+
+                        div { class: "report-section",
+                            h4 { "Editor Text" }
+                            pre { "{report_data().editor_text}" }
+                        }
+
+                        div { class: "report-section",
+                            h4 { "DOM HTML" }
+                            pre { "{report_data().dom_html}" }
+                        }
+                    }
+
+                    div { class: "report-actions",
+                        button {
+                            class: "report-cancel",
+                            onclick: close_dialog,
+                            "Cancel"
+                        }
+                        button {
+                            class: "report-submit",
+                            onclick: submit_report,
+                            "Open Email"
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/crates/weaver-app/src/main.rs b/crates/weaver-app/src/main.rs
index fd76d4e..f60e75c 100644
--- a/crates/weaver-app/src/main.rs
+++ b/crates/weaver-app/src/main.rs
@@ -100,6 +100,34 @@ fn main() {
     #[cfg(target_arch = "wasm32")]
     console_error_panic_hook::set_once();
 
+    // Set up tracing subscriber with both console output and log capture (wasm only)
+    // Must happen before dioxus::launch so dioxus skips its own init
+    #[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+    {
+        use tracing::Level;
+        use tracing::subscriber::set_global_default;
+        use tracing_subscriber::layer::SubscriberExt;
+        use tracing_subscriber::Registry;
+
+        let console_level = if cfg!(debug_assertions) {
+            Level::DEBUG
+        } else {
+            Level::INFO
+        };
+
+        let wasm_layer = tracing_wasm::WASMLayer::new(
+            tracing_wasm::WASMLayerConfigBuilder::new()
+                .set_max_level(console_level)
+                .build(),
+        );
+
+        let reg = Registry::default()
+            .with(wasm_layer)
+            .with(components::editor::LogCaptureLayer);
+
+        let _ = set_global_default(reg);
+    }
+
     #[cfg(feature = "server")]
     std::panic::set_hook(Box::new(|panic_info| {
         tracing::error!("PANIC: {:?}", panic_info);
diff --git a/crates/weaver-app/src/views/editor.rs b/crates/weaver-app/src/views/editor.rs
index 78a13e1..1fd9874 100644
--- a/crates/weaver-app/src/views/editor.rs
+++ b/crates/weaver-app/src/views/editor.rs
@@ -1,6 +1,6 @@
 //! Editor view - wraps the MarkdownEditor component for the /editor route.
 
-use crate::components::{editor::MarkdownEditor, record_view::CodeView};
+use crate::components::editor::{MarkdownEditor, ReportButton};
 use dioxus::prelude::*;
 
 /// Editor page view.
@@ -12,9 +12,14 @@ pub fn Editor() -> Element {
     rsx! {
         EditorCss {}
         div { class: "editor-page",
-            h1 { style: "margin-left: 6rem;", "Markdown Editor Test" }
+            div { class: "editor-header",
+                h1 { "Markdown Editor Test" }
+                ReportButton {
+                    email: "editor-bugs@weaver.sh".to_string(),
+                    editor_id: "markdown-editor".to_string(),
+                }
+            }
             MarkdownEditor { initial_content: None }
-
         }
     }
 }
@@ -41,3 +46,4 @@ pub fn EditorCss() -> Element {
         _ => rsx! {},
     }
 }
+