diff --git a/src/logging/BaseLogger.ts b/src/logging/BaseLogger.ts
index 3b2842ad..7d015262 100644
--- a/src/logging/BaseLogger.ts
+++ b/src/logging/BaseLogger.ts
@@ -17,10 +17,10 @@ limitations under the License.
 
 import {LogItem} from "./LogItem";
 import {LogLevel, LogFilter} from "./LogFilter";
-import type {FilterCreator, LabelOrValues, LogCallback, ILogItem} from "./LogItem";
+import type {ILogger, ILogExport, FilterCreator, LabelOrValues, LogCallback, ILogItem} from "./types";
 import type {Platform} from "../platform/web/Platform.js";
 
-export abstract class BaseLogger {
+export abstract class BaseLogger implements ILogger {
     protected _openItems: Set<ILogItem> = new Set();
     protected _platform: Platform;
 
@@ -141,7 +141,7 @@ export abstract class BaseLogger {
 
     abstract _persistItem(item: ILogItem, filter?: LogFilter, forced?: boolean): void;
 
-    abstract export(): void;
+    abstract export(): Promise<ILogExport | undefined>;
 
     // expose log level without needing 
     get level(): typeof LogLevel {
diff --git a/src/logging/ConsoleLogger.ts b/src/logging/ConsoleLogger.ts
index d8693e38..20fdf6a6 100644
--- a/src/logging/ConsoleLogger.ts
+++ b/src/logging/ConsoleLogger.ts
@@ -14,15 +14,15 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 import {BaseLogger} from "./BaseLogger";
-import type {ILogItem, LogItemValues} from "./LogItem";
+import type {ILogItem, LogItemValues, ILogExport} from "./types";
 
 export class ConsoleLogger extends BaseLogger {
     _persistItem(item: ILogItem): void {
         printToConsole(item);
     }
 
-    export(): void {
-        throw new Error("Cannot export from ConsoleLogger");
+    async export(): Promise<ILogExport | undefined> {
+        return undefined;
     }
 }
 
diff --git a/src/logging/IDBLogger.ts b/src/logging/IDBLogger.ts
index ebcf2249..621359dc 100644
--- a/src/logging/IDBLogger.ts
+++ b/src/logging/IDBLogger.ts
@@ -26,7 +26,7 @@ import {BaseLogger} from "./BaseLogger";
 import type {Interval} from "../platform/web/dom/Clock";
 import type {Platform} from "../platform/web/Platform.js";
 import type {BlobHandle} from "../platform/web/dom/BlobHandle.js";
-import type {ILogItem} from "./LogItem";
+import type {ILogItem, ILogExport} from "./types";
 import type {LogFilter} from "./LogFilter";
 
 type QueuedItem = {
@@ -131,7 +131,7 @@ export class IDBLogger extends BaseLogger {
         }
     }
 
-    async export(): Promise<IDBLogExport> {
+    async export(): Promise<ILogExport> {
         const db = await this._openDB();
         try {
             const txn = db.transaction(["logs"], "readonly");
@@ -171,7 +171,7 @@ export class IDBLogger extends BaseLogger {
     }
 }
 
-class IDBLogExport {
+class IDBLogExport implements ILogExport {
     private readonly _items: QueuedItem[];
     private readonly _logger: IDBLogger;
     private readonly _platform: Platform;
diff --git a/src/logging/LogFilter.ts b/src/logging/LogFilter.ts
index d0189631..8611d5f3 100644
--- a/src/logging/LogFilter.ts
+++ b/src/logging/LogFilter.ts
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import type {ILogItem, ISerializedItem} from "./LogItem";
+import type {ILogItem, ISerializedItem} from "./types";
 
 export enum LogLevel {
     All = 1,
diff --git a/src/logging/LogItem.ts b/src/logging/LogItem.ts
index 9521b67b..7774dd41 100644
--- a/src/logging/LogItem.ts
+++ b/src/logging/LogItem.ts
@@ -17,58 +17,7 @@ limitations under the License.
 
 import {LogLevel, LogFilter} from "./LogFilter";
 import type {BaseLogger} from "./BaseLogger";
-
-export interface ISerializedItem {
-    s: number;
-    d?: number;
-    v: LogItemValues;
-    l: LogLevel;
-    e?: {
-        stack?: string;
-        name: string;
-        message: string;
-    };
-    f?: boolean;
-    c?: Array<ISerializedItem>;
-};
-
-export interface ILogItem {
-    logger: any;
-    level: typeof LogLevel;
-    duration?: number;
-    end?: number;
-    start?: number;
-    logLevel: LogLevel;
-    children?: Array<ILogItem>;
-    values: LogItemValues;
-    error?: Error;
-    wrap<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T;
-    log(labelOrValues: LabelOrValues, logLevel?: LogLevel): void;
-    set(key: string | object, value: unknown): void;
-    run<T>(callback: LogCallback<T>): T;
-    runDetached(labelOrValues: LabelOrValues, callback: LogCallback<unknown>, logLevel?: LogLevel, filterCreator?: FilterCreator): ILogItem;
-    wrapDetached(labelOrValues: LabelOrValues, callback: LogCallback<unknown>, logLevel?: LogLevel, filterCreator?: FilterCreator): void;
-    refDetached(logItem: ILogItem, logLevel?: LogLevel): void;
-    ensureRefId(): void;
-    catch(err: Error): Error;
-    finish(): void;
-    child(labelOrValues: LabelOrValues, logLevel?: LogLevel, filterCreator?: FilterCreator): ILogItem;
-    serialize(filter: LogFilter, parentStartTime: number | undefined, forced: boolean): ISerializedItem | undefined;
-}
-
-export type LogItemValues = {
-    l?: string;
-    t?: string;
-    id?: unknown;
-    status?: string | number;
-    refId?: number;
-    ref?: number;
-    [key: string]: any
-}
-
-export type LabelOrValues = string | LogItemValues;
-export type FilterCreator = ((filter: LogFilter, item: ILogItem) => LogFilter);
-export type LogCallback<T> = (item: ILogItem) => T;
+import type {ISerializedItem, ILogItem, LogItemValues, LabelOrValues, FilterCreator, LogCallback} from "./types";
 
 export class LogItem implements ILogItem {
     public readonly start: number;
diff --git a/src/logging/NullLogger.ts b/src/logging/NullLogger.ts
index eba453e6..ed12cd78 100644
--- a/src/logging/NullLogger.ts
+++ b/src/logging/NullLogger.ts
@@ -14,20 +14,20 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 import {LogLevel} from "./LogFilter";
-import type {ILogItem, LabelOrValues, LogCallback, LogItemValues} from "./LogItem";
+import type {ILogger, ILogExport, ILogItem, LabelOrValues, LogCallback, LogItemValues} from "./types";
 
 function noop (): void {}
 
-export class NullLogger {
+export class NullLogger implements ILogger {
     public readonly item: ILogItem = new NullLogItem(this);
 
     log(): void {}
 
-    run<T>(_, callback: LogCallback<T>): T | Promise<T> {
+    run<T>(_, callback: LogCallback<T>): T {
         return callback(this.item);    
     }
 
-    wrapOrRun<T>(item: ILogItem, _, callback: LogCallback<T>): T | Promise<T> {
+    wrapOrRun<T>(item: ILogItem | undefined, _, callback: LogCallback<T>): T {
         if (item) {
             return item.wrap(_, callback);
         } else {
@@ -35,12 +35,13 @@ export class NullLogger {
         }
     }
 
-    runDetached(_, callback) {
+    runDetached(_, callback): ILogItem {
         new Promise(r => r(callback(this.item))).then(noop, noop);
+        return this.item;
     }
 
-    async export(): Promise<null> {
-        return null;
+    async export(): Promise<ILogExport | undefined> {
+        return undefined;
     }
 
     get level(): typeof LogLevel {
diff --git a/src/logging/types.ts b/src/logging/types.ts
new file mode 100644
index 00000000..6a29a7a2
--- /dev/null
+++ b/src/logging/types.ts
@@ -0,0 +1,87 @@
+/*
+Copyright 2020 Bruno Windels <bruno@windels.cloud>
+Copyright 2021 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {LogLevel, LogFilter} from "./LogFilter";
+import type {BaseLogger} from "./BaseLogger";
+import type {BlobHandle} from "../platform/web/dom/BlobHandle.js";
+
+export interface ISerializedItem {
+    s: number;
+    d?: number;
+    v: LogItemValues;
+    l: LogLevel;
+    e?: {
+        stack?: string;
+        name: string;
+        message: string;
+    };
+    f?: boolean;
+    c?: Array<ISerializedItem>;
+};
+
+export interface ILogItem {
+    logger: any;
+    level: typeof LogLevel;
+    duration?: number;
+    end?: number;
+    start?: number;
+    logLevel: LogLevel;
+    children?: Array<ILogItem>;
+    values: LogItemValues;
+    error?: Error;
+    wrap<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T;
+    log(labelOrValues: LabelOrValues, logLevel?: LogLevel): void;
+    set(key: string | object, value: unknown): void;
+    run<T>(callback: LogCallback<T>): T;
+    runDetached(labelOrValues: LabelOrValues, callback: LogCallback<unknown>, logLevel?: LogLevel, filterCreator?: FilterCreator): ILogItem;
+    wrapDetached(labelOrValues: LabelOrValues, callback: LogCallback<unknown>, logLevel?: LogLevel, filterCreator?: FilterCreator): void;
+    refDetached(logItem: ILogItem, logLevel?: LogLevel): void;
+    ensureRefId(): void;
+    catch(err: Error): Error;
+    finish(): void;
+    child(labelOrValues: LabelOrValues, logLevel?: LogLevel, filterCreator?: FilterCreator): ILogItem;
+    serialize(filter: LogFilter, parentStartTime: number | undefined, forced: boolean): ISerializedItem | undefined;
+}
+
+export interface ILogger {
+    log(labelOrValues: LabelOrValues, logLevel?: LogLevel): void;
+    wrapOrRun<T>(item: ILogItem | undefined, labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T;
+    runDetached<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): ILogItem;
+    run<T>(labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T;
+    export(): Promise<ILogExport | undefined>;
+    get level(): typeof LogLevel;
+}
+
+export interface ILogExport {
+    get count(): number;
+    removeFromStore(): Promise<void>;
+    asBlob(): BlobHandle;
+}
+
+export type LogItemValues = {
+    l?: string;
+    t?: string;
+    id?: unknown;
+    status?: string | number;
+    refId?: number;
+    ref?: number;
+    [key: string]: any
+}
+
+export type LabelOrValues = string | LogItemValues;
+export type FilterCreator = ((filter: LogFilter, item: ILogItem) => LogFilter);
+export type LogCallback<T> = (item: ILogItem) => T;
diff --git a/src/logging/utils.ts b/src/logging/utils.ts
index 61cbce80..2b32454d 100644
--- a/src/logging/utils.ts
+++ b/src/logging/utils.ts
@@ -2,7 +2,7 @@
 // if you know you always have a log item, better to use the methods on the log item than these utility functions.
 
 import {Instance as NullLoggerInstance} from "./NullLogger";
-import type {FilterCreator, ILogItem, LabelOrValues, LogCallback} from "./LogItem";
+import type {FilterCreator, ILogItem, LabelOrValues, LogCallback} from "./types";
 import {LogLevel} from "./LogFilter";
 
 export function wrapOrRunNullLogger<T>(logItem: ILogItem | undefined, labelOrValues: LabelOrValues, callback: LogCallback<T>, logLevel?: LogLevel, filterCreator?: FilterCreator): T | Promise<T> {
diff --git a/src/matrix/e2ee/megolm/Decryption.ts b/src/matrix/e2ee/megolm/Decryption.ts
index ee96eca1..e139e8c9 100644
--- a/src/matrix/e2ee/megolm/Decryption.ts
+++ b/src/matrix/e2ee/megolm/Decryption.ts
@@ -26,7 +26,7 @@ import type {OlmWorker} from "../OlmWorker";
 import type {Transaction} from "../../storage/idb/Transaction";
 import type {TimelineEvent} from "../../storage/types";
 import type {DecryptionResult} from "../DecryptionResult";
-import type {ILogItem} from "../../../logging/LogItem";
+import type {ILogItem} from "../../../logging/types";
 
 export class Decryption {
     private keyLoader: KeyLoader;
diff --git a/src/matrix/storage/idb/QueryTarget.ts b/src/matrix/storage/idb/QueryTarget.ts
index 7519beac..5bea1139 100644
--- a/src/matrix/storage/idb/QueryTarget.ts
+++ b/src/matrix/storage/idb/QueryTarget.ts
@@ -16,7 +16,7 @@ limitations under the License.
 
 import {iterateCursor, DONE, NOT_DONE, reqAsPromise} from "./utils";
 import {StorageError} from "../common";
-import {ILogItem} from "../../../logging/LogItem";
+import {ILogItem} from "../../../logging/types";
 import {IDBKey} from "./Transaction";
 
 // this is the part of the Transaction class API that is used here and in the Store subclass,
diff --git a/src/matrix/storage/idb/Storage.ts b/src/matrix/storage/idb/Storage.ts
index 728d4fca..6f3ed8ad 100644
--- a/src/matrix/storage/idb/Storage.ts
+++ b/src/matrix/storage/idb/Storage.ts
@@ -18,7 +18,7 @@ import {IDOMStorage} from "./types";
 import {Transaction} from "./Transaction";
 import { STORE_NAMES, StoreNames, StorageError } from "../common";
 import { reqAsPromise } from "./utils";
-import { BaseLogger } from "../../../logging/BaseLogger";
+import { ILogger } from "../../../logging/types";
 
 const WEBKITEARLYCLOSETXNBUG_BOGUS_KEY = "782rh281re38-boguskey";
 
@@ -26,13 +26,13 @@ export class Storage {
     private _db: IDBDatabase;
     private _hasWebkitEarlyCloseTxnBug: boolean;
 
-    readonly logger: BaseLogger;
+    readonly logger: ILogger;
     readonly idbFactory: IDBFactory
     readonly IDBKeyRange: typeof IDBKeyRange;
     readonly storeNames: typeof StoreNames;
     readonly localStorage: IDOMStorage;
 
-    constructor(idbDatabase: IDBDatabase, idbFactory: IDBFactory, _IDBKeyRange: typeof IDBKeyRange, hasWebkitEarlyCloseTxnBug: boolean, localStorage: IDOMStorage, logger: BaseLogger) {
+    constructor(idbDatabase: IDBDatabase, idbFactory: IDBFactory, _IDBKeyRange: typeof IDBKeyRange, hasWebkitEarlyCloseTxnBug: boolean, localStorage: IDOMStorage, logger: ILogger) {
         this._db = idbDatabase;
         this.idbFactory = idbFactory;
         this.IDBKeyRange = _IDBKeyRange;
diff --git a/src/matrix/storage/idb/StorageFactory.ts b/src/matrix/storage/idb/StorageFactory.ts
index 3c7e0e40..5cb1b6e5 100644
--- a/src/matrix/storage/idb/StorageFactory.ts
+++ b/src/matrix/storage/idb/StorageFactory.ts
@@ -20,8 +20,7 @@ import { openDatabase, reqAsPromise } from "./utils";
 import { exportSession, importSession, Export } from "./export";
 import { schema } from "./schema";
 import { detectWebkitEarlyCloseTxnBug } from "./quirks";
-import { BaseLogger } from "../../../logging/BaseLogger";
-import { ILogItem } from "../../../logging/LogItem";
+import { ILogItem } from "../../../logging/types";
 
 const sessionName = (sessionId: string) => `hydrogen_session_${sessionId}`;
 const openDatabaseWithSessionId = function(sessionId: string, idbFactory: IDBFactory, localStorage: IDOMStorage, log: ILogItem) {
diff --git a/src/matrix/storage/idb/Store.ts b/src/matrix/storage/idb/Store.ts
index 5a2a9abc..07cc90b0 100644
--- a/src/matrix/storage/idb/Store.ts
+++ b/src/matrix/storage/idb/Store.ts
@@ -18,7 +18,7 @@ import {QueryTarget, IDBQuery, ITransaction} from "./QueryTarget";
 import {IDBRequestError, IDBRequestAttemptError} from "./error";
 import {reqAsPromise} from "./utils";
 import {Transaction, IDBKey} from "./Transaction";
-import {ILogItem} from "../../../logging/LogItem";
+import {ILogItem} from "../../../logging/types";
 
 const LOG_REQUESTS = false;
 
diff --git a/src/matrix/storage/idb/Transaction.ts b/src/matrix/storage/idb/Transaction.ts
index 4c3d2b5c..80894105 100644
--- a/src/matrix/storage/idb/Transaction.ts
+++ b/src/matrix/storage/idb/Transaction.ts
@@ -36,8 +36,7 @@ import {OutboundGroupSessionStore} from "./stores/OutboundGroupSessionStore";
 import {GroupSessionDecryptionStore} from "./stores/GroupSessionDecryptionStore";
 import {OperationStore} from "./stores/OperationStore";
 import {AccountDataStore} from "./stores/AccountDataStore";
-import {ILogItem} from "../../../logging/LogItem";
-import {BaseLogger} from "../../../logging/BaseLogger";
+import type {ILogger, ILogItem} from "../../../logging/types";
 
 export type IDBKey = IDBValidKey | IDBKeyRange;
 
@@ -77,7 +76,7 @@ export class Transaction {
         return this._storage.databaseName;
     }
 
-    get logger(): BaseLogger {
+    get logger(): ILogger {
         return this._storage.logger;
     }
 
diff --git a/src/matrix/storage/idb/schema.ts b/src/matrix/storage/idb/schema.ts
index 6250980d..ad3e5896 100644
--- a/src/matrix/storage/idb/schema.ts
+++ b/src/matrix/storage/idb/schema.ts
@@ -11,7 +11,7 @@ import {SessionStore} from "./stores/SessionStore";
 import {Store} from "./Store";
 import {encodeScopeTypeKey} from "./stores/OperationStore";
 import {MAX_UNICODE} from "./stores/common";
-import {ILogItem} from "../../../logging/LogItem";
+import {ILogItem} from "../../../logging/types";
 
 
 export type MigrationFunc = (db: IDBDatabase, txn: IDBTransaction, localStorage: IDOMStorage, log: ILogItem) => Promise<void> | void;
diff --git a/src/matrix/storage/idb/stores/SessionStore.ts b/src/matrix/storage/idb/stores/SessionStore.ts
index dd133b45..7faedc41 100644
--- a/src/matrix/storage/idb/stores/SessionStore.ts
+++ b/src/matrix/storage/idb/stores/SessionStore.ts
@@ -16,8 +16,8 @@ limitations under the License.
 import {Store} from "../Store";
 import {IDOMStorage} from "../types";
 import {SESSION_E2EE_KEY_PREFIX} from "../../../e2ee/common.js";
-import {ILogItem} from "../../../../logging/LogItem";
 import {parse, stringify} from "../../../../utils/typedJSON";
+import type {ILogItem} from "../../../../logging/types";
 
 export interface SessionEntry {
     key: string;
diff --git a/src/matrix/storage/idb/stores/TimelineEventStore.ts b/src/matrix/storage/idb/stores/TimelineEventStore.ts
index b3663c29..bb6f652f 100644
--- a/src/matrix/storage/idb/stores/TimelineEventStore.ts
+++ b/src/matrix/storage/idb/stores/TimelineEventStore.ts
@@ -20,7 +20,7 @@ import { encodeUint32, decodeUint32 } from "../utils";
 import {KeyLimits} from "../../common";
 import {Store} from "../Store";
 import {TimelineEvent, StateEvent} from "../../types";
-import {ILogItem} from "../../../../logging/LogItem";
+import {ILogItem} from "../../../../logging/types";
 
 interface Annotation {
     count: number;