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Bl4 Save Editor - Edit Save Files Online

Complete Bl4 Save File Editor with Item Creation Tools. Decrypt, edit, and encrypt save files online.

Quick Start: Load your game data file, then use the Modded Item Builder (first tab) to paste or build serials with relaxed rules, or the Legit Item Builder to validate against strict rules.

📟 Save Editing 101 (Credit @girthquake1707) 📟 GenieBot 101 (Credit @girthquake1707) 📟 BL4 Theorycrafting Resource Hub (Credit @girthquake1707) 🎮 @GameZoneOfficial 📟 BL4 Item Serial Codes (Credit @Ynot) ☕ Support me on Ko-fi

Bl4 Item Builder

Choose your experience level

📁 Load JSON Files (Multiple)

Search Root Definition

Filter by Type

Parse Existing Serial

Paste Existing Item Code

Example Codes

Advanced Decode Details

Item Properties

Item Type The item type determines which parts are available

Manufacturer Select a manufacturer to filter item types

Level Item level

Random Seed 1–4096 (12-bit)

Serial modifiers

Firmware lock (9, 1) Buyback (10, 1)

Skin customization (c)

Or numeric c value

Quick Access — Uniques

Load a JSON file to view root definitions

Generated Item Code

Human-readable item code

Serialized Base85 Encoded serial for the game / backpack tools

Bl4 Item Builder

Choose your experience level

📁 Load JSON Files (Multiple)

Search Root Definition

Filter by Type

Serial Decoder & Validator

Paste Serial String (Base85 or Human-Readable)

Bulk Serial Validator

Paste Bulk Serials (YAML format or one per line - Base85 or Deserialized)

Quick Access — Uniques

🎮 Welcome to Simple Mode!

Switch to Advanced Mode to load JSON files and access all features.
In Simple Mode, you can browse and build items once data is loaded.

Load a JSON file to view root definitions

Final Output

Level (1-60):

Seed (1–4096):

Skin customization (c):

Or numeric c value:

Output String (Human-Readable):

Base85 Serialized:

👤 Profile Editor - Bl4 Profile Save File

Edit your profile.sav file to modify global settings, bank contents, and cosmetics

🔧 API Configuration

Steam ID / Epic ID:

Required for encryption/decryption. Enter a 17-digit Steam ID (starting with 7656119) or a 32-character Epic ID (hex).

🔓 Decrypt Profile File

Upload your profile.sav file to decrypt it to YAML format, or upload a .yaml file directly.

💡 Profile file location:


                            C:\Users\%USERNAME%\Documents\My games\Bl4\Saved\SaveGames\%SteamID%\Profiles\client\profile.sav

⚠️ Important: The profile.sav file contains global state shared across all characters, including:

Bank inventory
Cosmetics (skins, heads, etc.)
Black market inventory

Select profile.sav or .yaml file:

⚡ Quick Presets

NEW! Bounty Pack 4: Murders & Acquisitions Cosmetics!

Apply quick modifications to your profile save file:

Load a profile file first

▶ 🏦 Bank Items (0 items)

Edit items in your bank. Changes are saved directly to the YAML.

Filter by part or name:

➕ Add to Bank

Item Serial:

⚡ Mass edit (bank only)

Same tools as the save editor, applied only to profile bank slots in the YAML above.

Mass Level:

Mass Part Remover:

Mass Part Adder:

Quick remove:

Match loaded save level:

Mass state flags:

Load a profile file first

▶ 📊 Shared progression (0 unlocked)

Challenge-style unlocks that apply to your whole account (every character). The list comes from the game’s catalog and is grouped by type and region—for example city areas show as Dominion, grasslands as The Fadefields, shattered lands as Carcadia Burn, and mountains as Terminus Range. Changes here are saved with your profile.

Load a profile file first

▶ 🗺️ Shared map discovery data

Map pins and “discovered” spots for your account—fast travel, vendors, landmarks, Auger mines, echo logs, survivalist caches, and similar. Load the game’s data in Legit Builder first so names and categories show up. Use Unlock all Discovery points to mark everything at once, Clear all discovery points to remove them all, or use each group’s Add all … to profile / Remove all … From profile for just that type.

Load a profile file first

▶ 🌫️ Shared map fog data

Fog of Discovery per world or level: which parts of the map still look unexplored, shared across your account. Each row can be Full clear map (fully revealed), empty (reset / no data), or custom (whatever your save had). Clear all map fog reveals every level; Reset fog on all levels clears discovery fog on every level so maps look unexplored again. Use the per-level buttons below, add missing worlds from the list, or—if you are comfortable with it—paste matching profile YAML.

Load a profile file first

▶ ⬆️ SDU Upgrades, Tokens, and Vault Powers

Upgrade storage (backpack, bank, ammo, lost loot) with the SDU tier dropdowns, turn vault powers on or off with the checkboxes, and set your SDU token count below. Use Apply manifest (max SDU + vault powers) to max out upgrades and powers using the game data you have loaded (Legit Builder / Nexus or the built-in manifest).

Load a profile file first

▶ 🛒 Black market item selection

Choose which two legendary items show in your account’s black market vending machine—the game only supports two slots. Load the game’s data in Legit Builder first so you can search real item names. This screen does not change tracking for which random pools you have already used.

Load a profile file first

▶ 🎨 Cosmetics (0 unlocked)

NEW! Bounty Pack 4: Murders & Acquisitions Cosmetics!

Manage your unlocked cosmetics. Changes are saved directly to the YAML.

Load a profile file first

▶ 💰 Shared Currencies and Experience (Vault Card 4)

NEW! Vault Card 4 (Bounty Pack 4: Murders & Acquisitions)!

Edit shared currencies including Vault Card tokens and experience. Changes are saved directly to the YAML.

Vault Card 1

Vault Card 1 Tokens:

Vault Card 1 Level:

Experience points will be automatically calculated based on the level using the specialization XP curve.

Vault Card 1 Experience Points:

This value is automatically calculated when you change the level, but you can manually override it if needed.

Vault Card 2

Vault Card 2 Tokens:

Vault Card 2 Level:

Experience points will be automatically calculated based on the level using the specialization XP curve.

Vault Card 2 Experience Points:

This value is automatically calculated when you change the level, but you can manually override it if needed.

Vault Card 3

Vault Card 3 Tokens:

Vault Card 3 Level:

Experience points will be automatically calculated based on the level using the specialization XP curve.

Vault Card 3 Experience Points:

This value is automatically calculated when you change the level, but you can manually override it if needed.

Vault Card 4

Vault Card 4 Tokens:

Vault Card 4 Level:

Experience points will be automatically calculated based on the level using the specialization XP curve.

Vault Card 4 Experience Points:

This value is automatically calculated when you change the level, but you can manually override it if needed.

⚠️ Important: Always backup your profile.sav file before editing. This file affects all your characters. We are not responsible for any data loss.

💾 Save Editor - Bl4 Save File API

Decrypt, edit, and encrypt Bl4 save files using the Bl4 Save File API

🔧 API Configuration

Steam ID / Epic ID:

Required for .sav decrypt and for encrypt / overwrite. Not required to open an existing .yaml, .yml, or .txt export. Enter a 17-digit Steam ID (starting with 7656119) or a 32-character Epic ID (hex).

🔓 Decrypt Save File

Upload a .sav file to decrypt it to YAML format (Steam/Epic ID required), or upload a .yaml, .yml, or .txt file directly (read in the browser, no ID). Item serials are automatically decoded so you can edit them immediately.

💡 Save file location:


                            C:\Users\%USERNAME%\Documents\My games\Bl4\Saved\SaveGames\%SteamID%\Profiles\client

Select .sav, .yaml, .yml, or .txt file:

Load a save first

▶ ✏️ Edit Values (Change to level 60)

Directly edit character stats, currency, and ammo values. Changes update in real-time.

Load a save first

▶ ⚡ Apply Presets (Change class to RoboDealer - C4sh)

Apply preset modifications to your save file. These presets modify the YAML content directly.

Load a save first

▶ 📜 Mission State Editor

Remove missions to restart their progress. This will delete the mission from your save file, allowing you to start it fresh.

Bulk mission actions

“Skip” actions merge completed template state into the save. Resets remove matching local_sets keys only. Use backups.

By zone (main + side keys)

Scoped reset (remove sets from save)

Load a save first

▶ ⚡ Mass Edit Tools (Set all to Level 60)

Bulk edit tools for changing levels, removing parts, and modifying state flags across all items in your inventory.

Mass Level Changer:

Mass Part Remover:

Mass Part Adder:

Quick Remove:

Set All Items to Character Level:

Mass State Flag Changer:

Load a save first

▶ ⚔️ Equipped Items Slot Editor

Edit items currently equipped on your character. Changes are saved directly to the YAML.

Load a save first

▶ 📍 Backpack Items (0 items)

Edit items in your backpack. Changes are saved directly to the YAML.

Load a save first

▶ 📍 Lost Loot Items (0 items)

Edit items in your lost loot. Changes are saved directly to the YAML.

Load a save first

▶ 📦 Bulk Item Adder

Paste a list of item serials in any format (decoded, Base85, YAML, or JavaScript object). Items will be automatically detected, converted to Base85 format, and added to new backpack slots in the YAML. Added items will also appear in the decoded items area.

Item Serials (multiple formats supported):

🔢 Quantity Adder

Paste a single item serial (Base85 or decoded format), select a quantity and state flag, then add multiple copies to your backpack.

Item Serial:

Quantity:

State Flag:

▶ 🔄 Bulk Serial Decoder & Encoder

⚠️ Important: Always backup your save files before editing. We are not responsible for any data loss.

🎲 Random Item Generator

Select an item type to generate a random variant with randomized parts, level, and stats.

Select Item Type:

Level (1-60, leave empty to randomize):

Modification Level:

Higher levels add more random parts from other typeIds and array-based parts

⚠️ Warning

Random item generation can fail to produce a proper item and may result in unknown items, especially as modification levels increase. Higher modification levels add more parts which increases the chance of incompatibility or invalid part combinations.

Quantity:

Number of items to generate (1-100)

Bl4 Item Builder

📥 Parse Existing Serial

⚙ Item Properties

Serial modifiers

📤 Generated Item Code

Bl4 Item Builder

Serial Decoder & Validator

Bulk Serial Validator

Selected Parts & Tags

👤 Profile Editor - Bl4 Profile Save File

🔧 API Configuration

🔓 Decrypt Profile File

Decrypted YAML:

⚡ Quick Presets

▶ 🏦 Bank Items (0 items)

➕ Add to Bank

⚡ Mass edit (bank only)

▶ 📊 Shared progression (0 unlocked)

Account challenge unlocks

▶ 🗺️ Shared map discovery data

▶ 🌫️ Shared map fog data

▶ ⬆️ SDU Upgrades, Tokens, and Vault Powers

▶ 🛒 Black market item selection

▶ 🎨 Cosmetics (0 unlocked)

Cosmetic Management

▶ 💰 Shared Currencies and Experience (Vault Card 4)

Vault Card 1

Vault Card 2

Vault Card 3

Vault Card 4

💾 Save Editor - Bl4 Save File API

🔧 API Configuration

🔓 Decrypt Save File

Decrypted YAML:

▶ ✏️ Edit Values (Change to level 60)

▶ ⚡ Apply Presets (Change class to RoboDealer - C4sh)

▶ 📜 Mission State Editor

▶ ⚡ Mass Edit Tools (Set all to Level 60)

▶ ⚔️ Equipped Items Slot Editor

▶ 📍 Backpack Items (0 items)

➕ Add to Backpack

▶ 📍 Lost Loot Items (0 items)

➕ Add to Lost Loot

▶ 📦 Bulk Item Adder

🔢 Quantity Adder

▶ 🔄 Bulk Serial Decoder & Encoder

🎲 Random Item Generator

📜 Credits

🎮 Bl4 Item Editor

👨‍💻 Development

📚 Features

❤️ Special Thanks ❤️

Parse Existing Serial

Item Properties

Generated Item Code