All Free SMS & Text
Tools
15 free, browser-based utilities for SMS developers, messaging teams, and text power users. No signup needed.
Text Utilities
Transform, inspect, and generate text for testing and creative messaging.
SMS Text Transformer
Convert text to leet (1337), homoglyphs, mathematical bold — and see how SMS firewalls treat them.
Open ToolInvisible Character Detector
Find and remove invisible Unicode characters that break SMS segments, sender IDs, and forms.
Open ToolText Repeater
Repeat text up to 1,000x with live character, byte, and SMS segment counts. Copy or download.
Open ToolUpside Down Text Generator
Flip text using Unicode lookalike characters. Mirror mode with SMS encoding impact display.
Open ToolZalgo Text Generator
Stack Unicode combining marks into cursed text with live SMS segment cost. Instant copy.
Open ToolSMS & Pricing Tools
Calculate message length, segment count, and campaign costs across global routes.
SMS Character Counter
Detect GSM-7 vs UCS-2 encoding, count segments, and see your cost — no signup required.
Open ToolSMS Length Calculator
Know exactly how your message splits before you send. GSM-7, Unicode, multi-segment preview.
Open ToolSMS Cost Calculator
Direct rates from $0.008/msg in 40+ countries, up to 84% below legacy $0.05 pricing.
Open ToolSMS Cost Estimator
Live pricing across 149 countries with route comparison and campaign cost forecasting.
Open ToolSMS ROI Calculator
Compare costs vs competitors, model revenue projections, and analyze delivery costs.
Open ToolPhone & Network Tools
Validate numbers, detect carriers, and decode SMPP errors in real time.
Phone Number Validator
Check E.164 format, detect country from dial code, and validate length instantly. Live + batch mode.
Open ToolNumber Validation (HLR)
Real-time HLR lookups with carrier detection. Sub-200ms response for bulk validation.
Open ToolSMPP Error Decoder
Look up every SMPP command_status — ESME_RTHROTTLED, hex, decimal, or symbol — and fix it fast.
Open ToolDeveloper Tools
Build requests, inspect Unicode, and integrate with your workflow.
Ready to Start
All our tools are free to use. No account required. Try them now and see the difference data-driven messaging can make.