Fast browser-based tools for internet speed, latency, bandwidth, transfer time and media bitrate.
Purpose-built utilities. No account, no dashboard, no unnecessary steps.
Throughput, idle latency & load impact
Connection score + use-case ratings
Cloudflare edge HTTP latency and jitter
Cloudflare edge latency consistency
Transfer time from size & speed
Practical download estimate
Bits, bytes, Kbps, Mbps & Gbps
Instant decimal conversion
Network rate to file rate
Estimate local audio bitrate
Estimate local video bitrate
Compare two connection profiles side by side
One guided edge session for speed, latency, jitter & load
Idle vs loaded latency on the Cloudflare edge path
30 browser-local runs, trends, labels & comparisons
Measure two controlled connection states and compare
Guided two-run comparison with user-confirmed transport
Public request IP + browser network capabilities
Inspect public DNS records for a hostname
Resolve a validated IPv4 or IPv6 address to PTR
Practical upload estimate
Compare transfer time across connection speeds
Network, mask, host range & CIDR math
Normalize IPv6 prefixes and inspect address range
Compare IPv6 prefix containment and shared address space
Canonicalize, deduplicate and exactly aggregate IPv6 prefix lists
Split one IPv6 prefix into equal child networks with exact 128-bit math
Cover an IPv6 start/end range with the smallest exact CIDR set
Aggregate IPv6 prefixes exactly and inspect the smallest containing prefix
Cover an IPv4 start/end range with minimal CIDR blocks
Split one IPv4 network into equal child subnets
Aggregate multiple IPv4 CIDRs and inspect the containing supernet
Check containment, equality and separation between two IPv4 networks
Canonicalize, deduplicate and exactly aggregate IPv4 CIDR lists
Keep bounded network-planning notes in this browser only
Estimate bitrate, data use and upload headroom
Estimate hourly, daily and monthly data use
Plan video bitrate from file size and duration
Estimate audio file size from duration and bitrate
Compare entered plan rates with measured local results
Convert Mbps to MB/s and compare plan vs measured time
Symptom-led guidance from local measured evidence
Measure network performance with clear status and error feedback.
Turn bandwidth, file size and network ranges into practical answers.
Inspect supported media locally. Your file stays in your browser.
0bps combines focused tools with technical references so a number is not presented without explaining what it represents, what can change it and what it cannot prove.
A speed or latency result describes the path used by that test at that moment. Wi-Fi conditions, device load, VPN routing, congestion, the destination and time of day can all change the result. Repeat a test under controlled conditions before treating one run as a diagnosis.
READ THE MEASUREMENT METHOD →Transfer-time, bitrate, subnet and data-usage tools use deterministic calculations rather than hidden recommendations. Reference sections explain the units, assumptions and practical overhead that can make real-world outcomes differ from a theoretical value.
BROWSE TECHNICAL REFERENCES →Download throughput matters for large transfers, upload capacity matters for publishing and live video, while latency and jitter matter more for interactive traffic. 0bps keeps these signals separate instead of reducing every connection question to one headline number.
EXPLORE CONNECTION QUALITY →Browser tools cannot observe every router queue, prove native ICMP packet loss or guarantee performance to every service. When a capability cannot be measured honestly in the browser, 0bps states that boundary rather than inventing a result.
READ EDITORIAL STANDARDS →Start with the symptom, choose the signal that matches it, measure more than once, change one variable at a time, and compare like-for-like results. The tools are designed to support that process rather than replace network troubleshooting with a single score.