$14.99
Add to Cart
Secure Text Editor Auto-Backup Restore Any Version β Your words. Your machine. Your privacy
3 available
Details
Instant Download: yes (available destinations)
Condition: Brand new
Returns: 7 days, seller pays return shipping (more)
Overview
Secure Text Editor is a lightweight, offline, privacy-first text editor that stores your documents in encrypted form on disk. Unlike cloud-based editors or standard notepad applications, it protects your content even if someone knows the file path β encrypted documents cannot be read without your master password.
This version introduces file-level AES encryption (.stxt format), giving you a true security boundary between plain text and protected content.
Secure Text Editor v3.0.0
γSystem Requirementsγ
- Windows 10 / 11 (64-bit)
- After downloading, simply double-click to run
γFeaturesγ
- Supports encrypted files (.stxt) and regular text (.txt)
- Lock screen protection, automatic backup, read-only mode
- Restore the last ten versions of modifications
γInstallationγ
Download secure_text_editor.exe and double-click to run.
γNotesγ
- If Windows Defender blocks the program on your first run, please select "Run Anyway" or add it to the whitelist.
- If you need to restore encrypted files, please remember the main password. Once forgotten, it cannot be recovered.
Key Features
File-Level Encryption (New)
β’ .stxt Format β Encrypted documents use a custom .stxt extension.
β’ AES-128-CBC + HMAC-SHA256 (Fernet) with PBKDF2-HMAC-SHA256 key derivation, 100,000 iterations, 16-byte random salt per file.
β’ Per-File Salt β Even identical content produces different ciphertext across files.
β’ Auto-Detection β The editor reads the file header and knows whether to prompt for a password.
β’ Plain .txt Compatibility β You can still open and save standard plain text files; you choose the format when saving a new file.
β’ Save As Menu β Explicitly save the current buffer as .stxt or .txt at any time.
Privacy & Security
β’ 100% Offline β No cloud sync, no telemetry, no internet connection required.
β’ Encrypted History β Recent file paths and timestamps are AES-encrypted before being written to disk.
β’ Encrypted License File β Registration details stored with AES encryption.
β’ Encrypted Lock Password β Stored as a PBKDF2-HMAC-SHA256 hash (100k iterations, 16-byte salt), then AES-encrypted on disk.
β’ Encrypted Master Password Verification β A verify token is stored encrypted; the master password is never written to disk in plain form.
β’ Secure Delete β Document content is overwritten in memory before release.
β’ Audit Log β All significant events are logged locally (open, save, lock, unlock, backup, replace, master password changes).
Lock & Unlock
β’ Persistent Lock Password β Set once, reuse forever. No repeated setup.
β’ One-Key Lock β Press Ctrl+L or click Lock β locks instantly.
β’ Full-Screen Overlay β Dark overlay completely hides document content.
β’ Auto-Lock on Idle β Locks automatically after a configurable period of inactivity.
β’ Change / Clear Password β Manage anytime from the Protection menu.
β’ Read-Only Mode β Ctrl+R for view-only access.
Editor
β’ Multi-Document Interface β Left sidebar lists all open documents with modified indicators (*).
β’ Recent Files with Timestamps β Last 10 files with their last-access time, persisted across sessions.
β’ Find & Replace β Highlight search, find next/previous, replace one or all.
β’ Word Wrap Toggle β Auto-wrap long lines or horizontal scroll.
β’ Full Undo/Redo β Multi-level undo history.
β’ Right-Click Context Menu β Cut, copy, paste, find, replace, backup, and Save As.
β’ UTF-8 / GBK Encoding Support β Reads legacy encodings automatically.
Backup System
β’ Auto-Backup β Silent backup every 60 seconds (configurable).
β’ Manual Backup β One-click from sidebar or menu.
β’ Version History β Keeps the last 10 backups per file; older versions auto-cleaned.
β’ Restore Any Version β One click from the backup viewer.
β’ Backup Runs While Locked β Data protection never stops.
β’ Encrypted Files β Encrypted (.stxt) content is not backed up to prevent plaintext leakage; only the ciphertext on disk is authoritative.
Data Management
β’ Custom Data Directory β Choose where config, history, and backups are stored; migrate existing data with one click.
β’ Clear Sensitive Data β Wipes history, clipboard, undo buffer, and forces garbage collection.
β’ File Size Limits β Prevent memory exhaustion (50 MB default, up to 2Γ for encrypted files due to base64 overhead).
β’ Document Limit β Cap on simultaneous open documents (default 100).
Licensing
β’ One-Machine-One-Code β Each license is bound to a unique hardware fingerprint.
β’ Machine Code Auto-Generation β Copy and send; no manual entry required.
β’ Encrypted Local Storage β License data AES-encrypted on disk.
β’ Auto-Revalidation β Verified on each startup; invalid licenses are removed automatically.
________________________________________
File Formats
Format Extension Encryption Opened By Use Case
Plain text .txt None Any text editor Sharing, interoperability
Encrypted .stxt AES-128 + PBKDF2 (100k) Secure Text Editor only Private notes, sensitive data
.stxt File Structure
text
STXT-ENC-V1::
β’ Header STXT-ENC-V1: β Identifies the format for auto-detection.
β’ Salt β 16 random bytes, base64-encoded, unique per save.
β’ Token β Fernet-encrypted ciphertext (AES-128-CBC + HMAC-SHA256).
Overhead
β’ File size increases by ~33% due to base64 encoding.
β’ A 50 MB document becomes ~66 MB on disk.
β’ Memory peak during encrypt/decrypt: ~3Γ content size (50 MB β 150 MB).
________________________________________
Who Is It For?
1. Privacy-Conscious Individuals
Keep personal journals, passwords, and private notes fully offline and encrypted on disk. Even if someone copies the file or steals your USB drive, they cannot read the contents without the master password. The lock overlay protects against shoulder-surfing when stepping away.
Why it fits: File-level encryption, one-key lock, fully offline.
2. Legal, Medical, and Financial Professionals
Handle confidential client information in a compliant manner. .stxt files provide encryption at rest, an audit trail records all actions, and read-only modes protect against accidental modification. Meets common confidentiality obligations (HIPAA, GDPR, attorney-client privilege).
Why it fits: Encryption at rest, audit trail, machine-bound licensing.
3. Writers, Authors, and Content Creators
Protect unpublished manuscripts from leaks. Encrypted storage ensures that a stolen laptop or synced folder cannot expose your drafts. Version history and automatic backups guard against accidental deletions.
Why it fits: Manuscript protection, version history, offline.
4. Programmers and Developers
A fast, lightweight alternative to bloated IDEs for code snippets, API keys, and credentials you'd rather not paste into a browser. Save as .stxt for secrets; .txt for everything else.
Why it fits: Encrypted storage for secrets, global shortcuts, offline.
5. Students and Researchers
Store thesis drafts, research data, and study notes securely on your own computer. Backups guard against loss; the audit log tracks changes.
Why it fits: Encryption, backup system, affordable one-time purchase.
6. Small Businesses and Teams
Equip staff with a secure offline editor for internal documents. Batch licensing and machine binding prevent sharing. Custom data directory supports shared network drives. Audit logs provide usage visibility.
Why it fits: Batch licensing, audit trail, network-friendly.
Secure Text Editor is a lightweight, offline, privacy-first text editor that stores your documents in encrypted form on disk. Unlike cloud-based editors or standard notepad applications, it protects your content even if someone knows the file path β encrypted documents cannot be read without your master password.
This version introduces file-level AES encryption (.stxt format), giving you a true security boundary between plain text and protected content.
Secure Text Editor v3.0.0
γSystem Requirementsγ
- Windows 10 / 11 (64-bit)
- After downloading, simply double-click to run
γFeaturesγ
- Supports encrypted files (.stxt) and regular text (.txt)
- Lock screen protection, automatic backup, read-only mode
- Restore the last ten versions of modifications
γInstallationγ
Download secure_text_editor.exe and double-click to run.
γNotesγ
- If Windows Defender blocks the program on your first run, please select "Run Anyway" or add it to the whitelist.
- If you need to restore encrypted files, please remember the main password. Once forgotten, it cannot be recovered.
Key Features
File-Level Encryption (New)
β’ .stxt Format β Encrypted documents use a custom .stxt extension.
β’ AES-128-CBC + HMAC-SHA256 (Fernet) with PBKDF2-HMAC-SHA256 key derivation, 100,000 iterations, 16-byte random salt per file.
β’ Per-File Salt β Even identical content produces different ciphertext across files.
β’ Auto-Detection β The editor reads the file header and knows whether to prompt for a password.
β’ Plain .txt Compatibility β You can still open and save standard plain text files; you choose the format when saving a new file.
β’ Save As Menu β Explicitly save the current buffer as .stxt or .txt at any time.
Privacy & Security
β’ 100% Offline β No cloud sync, no telemetry, no internet connection required.
β’ Encrypted History β Recent file paths and timestamps are AES-encrypted before being written to disk.
β’ Encrypted License File β Registration details stored with AES encryption.
β’ Encrypted Lock Password β Stored as a PBKDF2-HMAC-SHA256 hash (100k iterations, 16-byte salt), then AES-encrypted on disk.
β’ Encrypted Master Password Verification β A verify token is stored encrypted; the master password is never written to disk in plain form.
β’ Secure Delete β Document content is overwritten in memory before release.
β’ Audit Log β All significant events are logged locally (open, save, lock, unlock, backup, replace, master password changes).
Lock & Unlock
β’ Persistent Lock Password β Set once, reuse forever. No repeated setup.
β’ One-Key Lock β Press Ctrl+L or click Lock β locks instantly.
β’ Full-Screen Overlay β Dark overlay completely hides document content.
β’ Auto-Lock on Idle β Locks automatically after a configurable period of inactivity.
β’ Change / Clear Password β Manage anytime from the Protection menu.
β’ Read-Only Mode β Ctrl+R for view-only access.
Editor
β’ Multi-Document Interface β Left sidebar lists all open documents with modified indicators (*).
β’ Recent Files with Timestamps β Last 10 files with their last-access time, persisted across sessions.
β’ Find & Replace β Highlight search, find next/previous, replace one or all.
β’ Word Wrap Toggle β Auto-wrap long lines or horizontal scroll.
β’ Full Undo/Redo β Multi-level undo history.
β’ Right-Click Context Menu β Cut, copy, paste, find, replace, backup, and Save As.
β’ UTF-8 / GBK Encoding Support β Reads legacy encodings automatically.
Backup System
β’ Auto-Backup β Silent backup every 60 seconds (configurable).
β’ Manual Backup β One-click from sidebar or menu.
β’ Version History β Keeps the last 10 backups per file; older versions auto-cleaned.
β’ Restore Any Version β One click from the backup viewer.
β’ Backup Runs While Locked β Data protection never stops.
β’ Encrypted Files β Encrypted (.stxt) content is not backed up to prevent plaintext leakage; only the ciphertext on disk is authoritative.
Data Management
β’ Custom Data Directory β Choose where config, history, and backups are stored; migrate existing data with one click.
β’ Clear Sensitive Data β Wipes history, clipboard, undo buffer, and forces garbage collection.
β’ File Size Limits β Prevent memory exhaustion (50 MB default, up to 2Γ for encrypted files due to base64 overhead).
β’ Document Limit β Cap on simultaneous open documents (default 100).
Licensing
β’ One-Machine-One-Code β Each license is bound to a unique hardware fingerprint.
β’ Machine Code Auto-Generation β Copy and send; no manual entry required.
β’ Encrypted Local Storage β License data AES-encrypted on disk.
β’ Auto-Revalidation β Verified on each startup; invalid licenses are removed automatically.
________________________________________
File Formats
Format Extension Encryption Opened By Use Case
Plain text .txt None Any text editor Sharing, interoperability
Encrypted .stxt AES-128 + PBKDF2 (100k) Secure Text Editor only Private notes, sensitive data
.stxt File Structure
text
STXT-ENC-V1::
β’ Header STXT-ENC-V1: β Identifies the format for auto-detection.
β’ Salt β 16 random bytes, base64-encoded, unique per save.
β’ Token β Fernet-encrypted ciphertext (AES-128-CBC + HMAC-SHA256).
Overhead
β’ File size increases by ~33% due to base64 encoding.
β’ A 50 MB document becomes ~66 MB on disk.
β’ Memory peak during encrypt/decrypt: ~3Γ content size (50 MB β 150 MB).
________________________________________
Who Is It For?
1. Privacy-Conscious Individuals
Keep personal journals, passwords, and private notes fully offline and encrypted on disk. Even if someone copies the file or steals your USB drive, they cannot read the contents without the master password. The lock overlay protects against shoulder-surfing when stepping away.
Why it fits: File-level encryption, one-key lock, fully offline.
2. Legal, Medical, and Financial Professionals
Handle confidential client information in a compliant manner. .stxt files provide encryption at rest, an audit trail records all actions, and read-only modes protect against accidental modification. Meets common confidentiality obligations (HIPAA, GDPR, attorney-client privilege).
Why it fits: Encryption at rest, audit trail, machine-bound licensing.
3. Writers, Authors, and Content Creators
Protect unpublished manuscripts from leaks. Encrypted storage ensures that a stolen laptop or synced folder cannot expose your drafts. Version history and automatic backups guard against accidental deletions.
Why it fits: Manuscript protection, version history, offline.
4. Programmers and Developers
A fast, lightweight alternative to bloated IDEs for code snippets, API keys, and credentials you'd rather not paste into a browser. Save as .stxt for secrets; .txt for everything else.
Why it fits: Encrypted storage for secrets, global shortcuts, offline.
5. Students and Researchers
Store thesis drafts, research data, and study notes securely on your own computer. Backups guard against loss; the audit log tracks changes.
Why it fits: Encryption, backup system, affordable one-time purchase.
6. Small Businesses and Teams
Equip staff with a secure offline editor for internal documents. Batch licensing and machine binding prevent sharing. Custom data directory supports shared network drives. Audit logs provide usage visibility.
Why it fits: Batch licensing, audit trail, network-friendly.
HK, Hong Kong
